RWA WASHING for Roll and Blanket

RWA adalah cairan yang dipergunakan unuk membersihkan roll tinta dan blanket pada saat pencucian/penggantian warna. Biasanya cairan berwarna kebiruan, tidak merusak blanket dan roll serta berbau seperti kamper atau minyak tanah.

Kemasan 200 lt/dr.

Info selengkapnya silahkan sms 089630600105


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KNITTING OIL GRADE A VS KNO 470

KNITTING OIL GRADE A

KNO1869 adalah minyak dengan kekentalan rendah untuk tekstil, dibuat dari
bahan dasar mineral kualitas tinggi. Mengandung penghambat karat dan oksidasi dan
memberikan daya emulsi yang sangat baik, mudah dicuci, mengurangi kemungkinan
timbulnya noda. Minyak konvensional setelah pemakaian beberapa jam cenderung
berubah warna menjadi kekuningan terutama bila kena panas dan cahaya,
menyebabkan minyak “knitting” konvensional meninggalkan noda dan dapat merusak
mesin.

APLIKASI

Digunakan pada mesin tekstil terutama bila ada kemungkinan kain/benang terpercik

minyak. Pemakaian termasuk pada peralatan loom wires, hosiery, warp knitting dan

mesin-mesin jahit untuk garment.
 

KNO 1869 sangat mudah dicuci (larut dengan air) karena kemampuannya beremulsi

dengan air. Dianjurkan dipakai pada jarum (needle), sinker, cam, jack pada mesin-

mesin circular knitting dan hosiery.

SPESIFIKASI 

I.S.O. Grade                                            22                                32

Viscosity

              cSt @ 40 C                             23.1                              34.6

              cSt @ 100 C                             4.6                                5.1

Viscosity Index                                      99                                101

Flash Point, 0C                                     240                               241

T.A.N mg KOH/g                                0.09                               0.10

Color Stability, 100 0C, 15 days          Clear                             Clear

Rust Prevention Test                             Pass                                Pass

For any further info please feel free to contact me.

SMS 089630600105,

will response you soon.

MT

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SUCROSE ESTERS, FOOD EMULSIFIER

Sucrose esters are obtained by esterifying sucrose with edible fatty acids from palm oil. This enables them to be used as emulsifiers in virtually all food products. Sucrose esters are used in many applications including bakery, confectionery, cereals, dairy, ice cream and sauces.

 Sucrose esters of fatty acids, commonly known as sucrose esters, and sucrose oligo esters are a relatively  
 new extension to the line of emulsifiers available for the American food market. Being based on sucrose and
 edible fatty acids, sucrose esters are a unique range of high quality, non-ionic emulsifiers. 
 They are obtained by esterifying one or more of the (primary) hydroxyl groups of the sucrose molecule with 
 methyl fatty acids. By varying the degree of esterification of the sucrose molecule it is possible to obtain 
 emulsifiers with HLB values ranging from 1 up to19 for the high mono-esters. 


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METHYL SOYATE as a solvents

METHYL SOYATE

Methyl soyate, a biobased solvent
made from soybean oil, is an excellent replacment for
petrochemical solvents. It offers numerous advantages
over traditional solvents.

Safety advantages
• High flash point (greater than 360 degrees F)
• Low VOC levels (<50 g/L )
• Non-ozone-depleting chemical (ODC)
• Non-SARA reportable
• Readily biodegradable
• Potential for reduced waste-disposal costs

Performance advantages
• Can be used to formulate many types of products
• Provides effective solvency with a kauri-butanol (KB)
value of 58
• Compatible with other organic solvents

Methyl soyate has a high solvency with a Kauri-butanol (KB) value of 58 and has low toxicity when compared to other common substances. In comparison to most commercial solvents, methyl soyate is safer to handle and store due to its high flashpoint of approximately 360 degrees Fahrenheit and high boiling point of well over 400 degrees Fahrenheit. In addition, the Environmental Protection Agency (EPA) does not list methyl soyate as an ozone-depleting chemical (ODC), hazardous air pollutant or volatile organic compound. Methyl soyate�s slow evaporation time can be seen as a disadvantage, but in certain applications methyl soyate outperforms other traditional solvents when longer settle times are needed.

Beyond being an ingredient in cleaners and strippers to replace chlorinated or petroleum products, methyl soyate could find increased use as a carrier solvent. Solvents used as carriers and diluents in a number of alkyd coatings and adhesives include methyl ethyl ketone peroxide (MEK), toluene and xylene for coatings and methylene chloride (MeCL) and MEK for adhesives.
Methyl soyate is not limited to replacement of regulated industrial cleaning solvents. Due to its eco-friendly nature, methyl soyate can be used to clean up and recover spilled petroleum products from shorelines and streams. In fact, the EPA has listed a methyl soyate biosolvent on the National Contingency Plan product schedule for oil spills. It is also licensed by the state of California as a shoreline cleaner.

Formulated consumer products ranging from hand cleaners to auto-care to personal care products that utilize methyl soyate are already being produced and marketed. Additionally, expanding utilization of methyl-soyate-based co-solvents with ethyl lactate in products such as Vertec Biosolvent�s Vertec Gold solvent, and methyl-soyate-based co-solvents with d-limonene (citrus extract) in products such as CITRUSoy by Bi-O-Kleen Industries, Inc. also show promise. Vertec Gold is used in specialty coatings, inks and cleaners and offers increased versatility and high performance. CITRUSoy solvent, cleaner and degreaser are suitable for removing gum, wax, tar, asphalt, graffiti and more. Other new emerging applications for soy-based-solvent products and processes include bioremediation, paper pulp cleaning and highway paving materials that replace asphalt.

Methyl soyate is proving to be a great alternative to chemical-laden cleaners and solvents. Development and commercialization of biobased products are rapidly expanding because of increased government regulations and market demands for safe, healthy and environmentally-friendly alternatives to terpene or petrochemical based solvents and cleaner/degreasers containing butyls. Opportunities to increase the usage of methyl soyate continue to grow

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Sodium methylate as Catalyst for Biodiesel

Sodium methoxide is a chemical compound with the formula CH3ONa. This colourless solid, which is formed by the deprotonation of methanol, is a widely used reagent in industry and the laboratory. It is also a dangerously caustic base.

Preparation and structure
Sodium methoxide is prepared by carefully treating methanol with sodium:

2 Na + 2 CH3OH → 2 CH3ONa + H2

The reaction is so exothermic that ignition is possible. The resulting solution, which is colorless, is often used as a source of sodium methoxide, but the pure material can be isolated by evaporation followed by heating to remove residual methanol. The solid hydrolyzes in water to give sodium hydroxide, and commercial samples can be contaminated with the hydroxide. The solid and especially solutions absorb carbon dioxide from the air, thus diminishing the effectiveness of the base.

In the solid form, sodium methoxide is polymeric, with a sheet-like arrays of Na+ centers, each bonded to four oxygen centers.

The structure, and hence its basicity, of sodium methoxide in solution depends on the solvent. It is significantly stronger base in DMSO where it is more fully ionized and free of hydrogen bonding.

Applications
Organic synthesis
Sodium methoxide is a routine base in organic chemistry, applicable to the synthesis of numerous compounds, ranging from pharmaceuticals to agrichemicals. As a base, it is employed in dehydrohalogenations and various condensations. It is also a nucleophile for the production of methyl ethers.

Industrial applications
Sodium methoxide is used as an initiator of anionic addition polymerization with ethylene oxide, forming a polyether with high molecular weight. Biodiesel is prepared from vegetable oils and animal fats, that is, fatty acid triglycerides, by transesterification with methanol to give fatty acid methyl esters (FAMEs). This transformation is catalyzed by sodium methoxide.

Safety
Sodium methoxide is highly caustic, and the hydrolysis gives methanol, which is toxic and volatile.

Iwan Tan
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PHOSPHORIC ACID

Phosphoric acid (also known as orthophosphoric acid or phosphoric(V) acid) is a mineral (inorganic) acid having the chemical formula H3PO4. Orthophosphoric acid molecules can combine with themselves to form a variety of compounds which are also referred to as phosphoric acids, but in a more general way. Orthophosphoric acid refers to phosphoric acid, which is the IUPAC name for this compound. The prefix ortho is used to distinguish the acid from related phosphoric acids, called polyphosphoric acids. Orthophosphoric acid is a non-toxic acid, which, when pure, is a solid at room temperature and pressure.

The conjugate base of phosphoric acid is the dihydrogen phosphate ion, H2PO−4, which in turn has a conjugate base of hydrogen phosphate, HPO2−4, which has a conjugate base of phosphate, PO3−4.

In addition to being a chemical reagent, phosphoric acid has a wide variety of uses, including as a rust inhibitor, food additive, dental and orthop(a)edic etchant, electrolyte, flux, dispersing agent, industrial etchant, fertilizer feedstock, and component of home cleaning products.

The most common source of phosphoric acid is an 85% aqueous solution; such solutions are colourless, odourless, and non-volatile. The 85% solution is a rather viscous, syrupy liquid, but still pourable. Because it is a concentrated acid, an 85% solution can be corrosive, although nontoxic when diluted. Because of the high percentage of phosphoric acid in this reagent, at least some of the orthophosphoric acid is condensed into polyphosphoric acids. For the sake of labeling and simplicity, the 85% represents H3PO4 as if it were all orthophosphoric acid. Dilute aqueous solutions of phosphoric acid exist in the ortho- form.

Phosphoric acid is used:

> As an external standard for phosphorus-31 Nuclear magnetic resonance (NMR).
> As a buffer agent in biology and chemistry; For example, a buffer for high-performance liquid chromatography.
> As a chemical oxidizing agent for activated carbon production, as used in the Wentworth Process.[12]
> As the electrolyte in phosphoric acid fuel cells. With distilled water (2–3 drops per gallon) as an electrolyte in oxyhydrogen
generators.
> As a catalyst in the hydration of alkenes to produce alcohols, predominantly ethanol.
> As an electrolyte in copper electropolishing for burr removal and circuit board planarization.
> As a flux by hobbyists (such as model railroaders) as an aid to soldering.
In compound semiconductor processing, phosphoric acid is a common wet etching agent: for example, in combination with hydrogen
peroxide and water it is used to etch InGaAs selective to InP.[13]
Heated in microfabrication to etch silicon nitride (Si3N4). It is highly selective in etching Si3N4 instead of SiO2, silicon
dioxide.[14]
> As a cleaner by construction trades to remove mineral deposits, cementitious smears, and hard water stains.
> As a chelant in some household cleaners aimed at similar cleaning tasks.
In hydroponics pH solutions to lower the pH of nutrient solutions. While other types of acids can be used, phosphorus is a nutrient
used by plants, especially during flowering, making phosphoric acid particularly desirable.
> As a pH adjuster in cosmetics and skin-care products.[15]
> As a dispersing agent in detergents and leather treatment.
> As an additive to stabilize acidic aqueous solutions within a wanted and specified pH range.

Source : http://en.wikipedia.org/wiki/Phosphoric_acid

Iwan Tan
Direct : +62 21 30338514
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CPE 135 A

Product performance:
Chlorinated polyethylene based impact modifier. Exhibits fine multiple physical properties with good low-temperature flexibility and better tearing strength. Possesses dissolved parameter nearly same as PVC and good affinity with PVC. Under the condition of right processing, forms a network composition inside of the hard PVC finish products and gives them good normal, low-temperature flexibility and impact strength.

Applications / Recommended for:
PVC (Polyvinylchloride) >> PVC compound (rigid or unplasticized compound)
PVC (Polyvinylchloride) >> PVC Compound (flexible or plasticized)

TYPICAL PROPERTIES VALUE UNIT
Chlorine content 34 - 36 %
Thermal Decomposition temperature 165 °C
Bulk Density 0.5 g/ml
Volatile Content 0.4 %
Particle Size (36 mesh passing percentage) 99 %
Impurity Particle 10 PC/50g
Shore Hardness 65 A
Tensile Strength 6.0 MPa




For any further info please feel free to contact me.

Michael Thang
Direct : +62 21 30338514
smintikimia@yahoo.co.id Read More..

MENTHOL CRYSTAL

Menthol is an organic compound made synthetically or obtained from cornmint, peppermint or other mint oils. It is a waxy, crystalline substance, clear or white in color, which is solid at room temperature and melts slightly above. The main form of menthol occurring in nature is (−)-menthol, which is assigned the (1R,2S,5R) configuration. Menthol has local anesthetic and counterirritant qualities, and it is widely used to relieve minor throat irritation. Menthol also acts as a weak kappa opioid receptor agonist.





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DIACETONE ALCOHOL

Diacetone alcohol is a chemical compound with the formula CH3C(O)CH2C(OH)(CH3)2. This liquid is a common synthetic intermediate used for the preparation of other compounds.

It occurs naturally in Sleepy grass (Achnatherum robustum).


Synthesis

First identified by Heintz, its preparation entails the Ba(OH)2-catalyzed condensation of two molecules of acetone.

It undergoes dehydration to give the α,β-unsaturated ketone, mesityl oxide:[3] Hydrogenation of mesityl oxide gives the industrial solvent, methyl isobutyl ketone ("MIBK").


Uses

It is used in cellulose ester lacquers, particularly of the brushing type, where it produces brilliant gloss and hard film and where its lack of odor is desirable. It is used in lacquer thinners, dopes, wood stains, wood preservatives and printing pastes; in coating compositions for paper and textiles; permanent markers;[4] in making artificial silk and leather; in imitation gold leaf; in celluloid cements; as a preservative for animal tissue; in metal cleaning compounds; in the manufacture of photographic film; and in hydraulic brake fluids, where it is usually mixed with an equal volume of castor oil.

Iwan Tan
Direct : +62 21 30338514
smintikimia@yahoo.co.id Read More..

Lubrication Basics

One of the most important things an operator can do for his machinery is to make sure it is properly lubricated. So what is a lubricant and how does it affect operations when used properly? This paper will answer these questions and more by covering the fundamentals of lubrication. We will discuss how a lubricant works to remove friction, the physical and chemical properties of the lubricant, and the many functions of a lubricant.

Many people believe that a lubricant is simply used to make things “slippery.” While it is the primary function, there are more advantages to using the right lubricant. In addition to friction reduction, it also reduces the amount of wear that occurs during operation, reduces operating temperatures, minimizes corrosion of metal surfaces, and assists in keeping contaminants out of the system. Lubricants have many properties that can be mixed and matched to meet your operating needs. For example, there are different chemicals that can be added to allow a machine to efficiently run at extreme temperatures. We can also make a lubricant more effective in protecting machine surfaces under extreme pressures. By looking at the demands of the machine, you can properly identify the type of lubricant best suited for its proper function.

What Is Lubrication?

To understand what lubrication is, you first need to understand why we use it. Friction is the force that resists relative motion between two bodies in contact. If friction didn’t exist, nothing would ever stop moving. We need friction to function, but there are instances where you want to be able to reduce the amount of friction present. When you rub your hands together, you create heat because of the friction between the sliding surfaces of your hands. Now imagine rubbing your hands together 3600 times a minute – your hands would be on fire! Similar heat is generated by friction in your machinery. If the lubricant in your equipment has not been appropriately selected with standard operating temperatures, load, speed, etc., in mind, catastrophic failure may result.

You could wipe your bearings or if you stop your motor, for example, and the machine is too hot, you could seize the bearings. Either way, both are costly when you consider time lost, manpower used, and new equipment purchased. In order to avoid failures of this nature, we lubricate our machinery to minimize the resistance to movement, and as a result, minimize the amount of heat produced. The heat that is produced by the equipment is transferred to the oil so that it may be removed by a lube oil cooler. There are a lot of considerations that must be applied when selecting the type of lubricant we need to use: viscosity, additives needed, properties, etc.

Reducing friction and reducing heat are only a couple of the reasons we use lubricants. If you look under a microscope at two surfaces moving across each other, you would see something that looks like two mountain ranges rubbing against one another. As this happens, pieces of the weaker material break off and create smaller abrasive particles, resulting in more broken off pieces, which go on to create more abrasion. It’s a vicious cycle, and the way we prevent this from occurring is by creating a lubrication film. Two of the preferred and most common types of fluid related lubricant films are hydrodynamic and elastohydrodynamic. Hydrodynamic films are present between sliding contacts. The most common example would be a journal bearing.

When a shaft is still, it sits on the bottom of the bearing, but when it starts to move, it tries to “climb” up the side of the bearing. Microscopic layer upon layer of the lubricant create friction with each other and form an oil wedge between the shaft and the bearing, protecting both surfaces. Elastohydrodynamic films are present in rolling contacts, such as ball bearings or roller bearings. In this situation, the softer material makes up the rolling element which actually deforms for a split second to enlarge the contact area between mating surfaces. Here, the oil film thickness is one micron or less, which brings me to another reason for lubrication. We need to minimize foreign particles that may cause damage to this area.

Now in situations where the film layer is only one micron thick, you could imagine that any contaminants that are present can create major damage, so we try to eliminate as many as possible. While we can control the amount of contamination that enters a system by using seals, filters, and other quality controls, it’s impossible to completely eliminate machinery wear, even with the best lubricant films. So what do we do with the wear particles we can’t avoid? Certain additives in lubrication will be attracted to these contaminants, suspend them in the lubricant, and transfer them to filters or other separators installed in the system where they will be removed.

Finally, most places aren’t completely unaffected by humidity. So what does it mean when water and air come into contact with metal? Corrosion, and as we all know, that’s not good for machine operation. So how does a lubricant help with this problem? There are different additives, similar in operation to the additives used for contamination control, which prevent metal surfaces from coming in contact with water. This prevents the production of rust, therefore preventing damage to the metal machine surfaces.

So a lubricant is a substance that reduces friction, heat, and wear when introduced as a film between solid surfaces. Using the correct lubricant helps maximize the life of your bearings and machinery, therefore saving money, time, and manpower, thus making operations more efficient and more reliable.

What Makes Up the Lubricants We Use?

All lubricants start with a base oil. There are three types: mineral, synthetic, and vegetable. In industrial applications, we mostly deal with mineral and synthetic, so I would like to focus on these. Mineral oil comes from crude oil and the quality depends on the refining process. There is a grading scale for oil and different applications require different oil quality. Mineral oil is mainly made up of four different types of molecules – paraffin, branched paraffin, naphthene, and aromatic. Paraffinic oils have a long, straight chained structure, while branched paraffinic oils are the same with a branch off the side. These are used mainly in engine oils, industrial lubricants, and processing oils. Naphthenic oils have a saturated ring structure and are most common in moderate temperature applications. Aromatic oils have a non-saturated ring structure and are used for manufacturing seal compounds and adhesives. Synthetic oils are man-made fluids that have identical straight chained structures, much like the branched paraffinic oils. One of the benefits of a synthetic is that the molecular size and weight are constant while mineral oils vary greatly; therefore the properties are very predictable.

So why don’t we use synthetic oils all the time if we know exactly what it’s going to do? While there are many advantages to using a synthetic, there are almost as many reasons to not use it. The best quality mineral oil is mostly made up of paraffinic oils, like those in synthetic oil. So, in many applications, mineral oil is just as good as synthetic, and in these applications is most likely the preferred base due to synthetic’s high cost, toxicity, solubility, incompatibility, and hazardous disposal. However, in extreme applications where a high flash point, low pour point, fire resistance, thermal stability, high shear strength, or high viscosity index is needed, a synthetic may be just what’s required.

We briefly discussed a couple of the additives that are used with a base oil in order to improve performance, but I’d like to expand on the most common additives now. The most important property to look at when choosing a lubricant is its viscosity. This is the oil’s resistance to shear and flow. The simplest way to describe viscosity is to relate it to substances that we are familiar with. The higher an oil’s viscosity, the slower it flows. Molasses, for example, has a very high viscosity while baby oil has a very low viscosity. The viscosity required for an application depends on the speed, operating temperature, and type of bearing as well as the type of component, like a gearbox versus a motor. Working hand in hand with viscosity is the viscosity index, which relates change in viscosity due to temperature. The higher the viscosity index, the less viscosity is affected by temperature. This property can be improved with a viscosity index additive. Rust inhibitors protect surfaces against rust by forming a thin water repelling film on the metals surface. Dispersants help protect components against abrasion from wear products by enveloping particles and suspending them in the oil so that they may be easily flushed and removed from the system. Antiwear and extreme pressure (EP) additives react with a component’s surfaces to form a thin protective layer to prevent metal-to-metal contact. This is especially helpful in situations where there is high pressure or a lot of stop and start evolutions. Detergents work to neutralize acids and clean surfaces where deposits may be detrimental. Finally, defoamants weaken the surface tension of bubbles so that they may break easily and minimize foaming.

For any given oil, the ingredients are the base oil and the additives. The only difference for grease is that it also has a thickener. This is most commonly described as “the sponge that holds the lubricant.” Up to thirty percent of grease is made up of the thickener which is either a simple or complex soap. Simple soap is made up of long fibers and has a smooth, buttery texture. Examples of simple soaps are lithium, polyurea, calcium, and silica. Complex soap is made up of short and long fibers and has a more fibrous texture. Some examples are aluminum, sodium, and barium.

There are benefits of using a grease as opposed to oil in certain applications. Grease seals out contaminants, is better suited for insoluble solid additives like molybdenum disulfide and graphite, and has better stop-start performance because it doesn’t drain away like oil, for a lower chance of a dry start. However, the thickness of grease limits bearing speed, reduces cooling of components, makes for difficult sampling and analysis, and makes it difficult to determine the proper amount of grease that needs adding. This is something that must be taken into consideration when deciding if oil or grease would be better suited for the application.

With a basic understanding of lubrication, you can see there are quite a few advantages of using the proper lubrication in your machines. Higher efficiency, longer life, better reliability, and less money spent on maintenance are goals that every company strives to achieve. Learning more about proper lubrication programs and applying everything you learn will make these goals easily within reach.


Source: Noria Corp.


Iwan Tan
Direct : +62 21 30338514
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How to Spot Lubrication Warning Signs

Knowing the condition of your lubricants is essential to keeping manufacturing plants running smoothly. This can be accomplished through a thorough oil analysis program that tracks multiple critical wear-related characteristics of oil in service by comparing the results with previous reports and noting the trends. Such a program helps identify contamination, lubricant degradation, abnormal machine wear and problems with sampling. It also can transform a lubrication program from time-based to condition-based, eliminating unnecessary changes.

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CASTOR OIL

Castor Oil is a vegetable oil obtained by pressing the seeds of the castor plant ( Ricinus Communis ). The common name " Castor Oil " probably comes from its uses as a replacement for castoreum, a parfume base made from the dried perineal glands of the beaver.

Castor oil is a colorless to very pale yellow liquid with mild or no odor or taste. Its boiling point is 313 0C ( 595 0F )and its density is 961 kg/m3. It is a triglyceride in which approximately 90 percent of fatty acid chains are ricinoleate. Oleate and llinoleates are the other significant components.

Castor oil and its derivatives are used in the manufacturing of soaps, lubricants, hydraulic and brake fluids, paints, dyes, coating, inks, cold resistant plastic, waxes and polishes, nylon, pharmaceuticals and perfumes.

Source : wikipidia.

Iwan Tan
Direct : +62 21 30338514
smintikimia@yahoo.co.id

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BAYNOX, ANTIOXIDANT FOR BIODIESEL

Biodiesel is perishable and starts to oxidise as soon as it has been produced. It reacts with atmospheric oxygen to produce volatile compounds, corrosive carboxylic acids and polymerized / cross-linked biodiesel gums that can damage diesel engine components. Already certain fuel pump manufacturers have withdrawn warranties for B100 because of such gums and residues which are not due to biodiesel itself, rather the biproducts of biodiesel oxidation.

Baynox prevent the premature oxidation of unsaturated biodiesel esters and hence the formation of these problematic biproducts-keeping biodiesel fresh and extending it's shelf life.

Baynox is especially suitable for biodiesel produced from vegetable oils with a low content of multiple unsaturated fatty acids and an iodin number of <120.
If the activity is not sufficient, it is recommended to use the stronger product Baynox Plus instead.

Baynox stops the oxidation of biodiesel and improves the stability in the rancimat test according to DIN EN 14214.  In this way the product inhibits the formation of corrosive acids ( which lead to an increased filter blocking tendency ) due to oxidation of the biodiesel.

It is recommended to prepare a solution of 15-20% of Baynox in biodiesel, to filter the solution prior to use and to add this solution to the final biodiesel.

For any further information please call Michael Thang, 08164850242, chemical_info@yahoo.com.

Succes for you all,

Michael Thang

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CUTTING OIL

Cutting Oil

Adalah cairan yang dibutuhkan dalam proses pendinginan pada pemotongan besi. Sehingga besi potong tidak mudah cepat rusak atau aus.

Cutting oil atau disebut juga Metal Cutting Fluid banyak di gunakan pada proses pemotongan besi. Proses pemotongan dibagi dalam beberapa istilah sb :

1. Grinding
2. Milling
3. Boring
4. Turning

Cutting oil ada 2 tipe :
1. Soluble Cutting Oil
    Penggunaan Cutting Oil dengan cara di campur air dengan perbandingan tergantung kebutuhan. Efek    
    negatif yang ditimbulkan adalah timbulnya bau dari bakteri yang hidup karena pencampuran dengan air.

2. Neat Cutting Oil
    Penggunaan Cutting Oil dengan cara tanpa pencampuran, Cutting oil jenis ini termasuk kategori Cutting
    Oil yang siap pakai.  Biasanya digunakan pada proses pengerjaan metal dengan tingkat kekerasan yang
    amat tinggi.

Informasi selengkapnya dan kebutuhan Cutting Oil  jangan sungkan hubungi kami.

Salam Sukses
MT
08164850242
chemical_info@yahoo.com

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Bentonite

Bentonite terbentuk dari abu vulkanik, Unsur (Na,Ca)0.33(Al,Mg)2Si4O10(OH)2·(H2O). Sifat materialnya tidak menyerap air. Banyak digunakan sebagai bahan kosmetik, keramik, semen, adhesives, cat dan lain sebagainya. Selain di Indonesia banyak terdapat diAmerika Utara, Australia, Afrika dan banyak negara lainya. Bentonite dipergunakan juga untuk penahan longsor tanah pada saat melakukan pengeboran pada pekerjaan borepile, masukan bentonite pada lubang yang di bor kemudian tunggu berapa saat dan lakukan kembali supaya bentonitenya bisa mempekeras permukaan dinding tanah yang di bor.

    Bentonit adalah suatu istilah nama dalam dunia perdagangan yang sejenis lempung plastis yang mempunyai kandungan mineral monmorilonit lebih dari 85% dengan rumus kimianya Al₂O₃.4SiO₂ x H₂O. Nama ini diusulkan pertama kali oleh Knight (1898) untuk nama sejenis lempung koloid yang ditemukan pada formasi Benton “Rock Creek” Wyoming Amerika Serikat.

    Penamaan istilah bentonit diusulkan sebagai pengganti dari istilah nama lain sebelumnya yaitu:  “Soapy Clay” atau “Taylorit” yang dipopulerkan oleh Taylorite pada tahun 1888. Sedangkan nama monmorilonit itu sendiri berasal dari Perancis pada tahun 1847 untuk penamaan sejenis lempung  yang terdapat di Monmorilon Prancis yang dipublikasikan pada tahun 1853 – 1856. Grim pada tahun (1968) mengelompokkan monmorilonit ini kedalam Smektit Group sub kelompok smektit di-oktahedral (heptaphyllitic) bersama dengan beidelit dan nontronit. Sedangkan sub kelompok lainnya adalah smektit tri-oktahedral (cetaphyllitic) yang terdiri dari mineral hektorit dan saponit.Secara megaskopis bentonit dapat diamati secara langsung dengan ciri khas yaitu : mempunyai kilap lilin, lunak, berwarna abu-abu kecoklatan sampai kehijauan.

Bentonit dapat dibagi menjadi 2 golongan berdasarkan kandungan alu-munium silikat hydrous, yaitu activated clay dan fuller's Earth. Activated clayadalah lempung yang kurang memiliki daya pemucat, tetapi daya pemucatnya dapat ditingkatkan melalui pengolahan tertentu. Sementara itu, fuller's earthdigunakan di dalam fulling atau pembersih bahan wool dari lemak.

     Sedangkan berdasarkan tipenya, bentonit dibagi menjadi dua, yaitu :

a.                  Tipe Wyoming ( Na-bentonit-Swelling bentonit )

Na bentonite memiliki daya mengembang hingga delapan kali apabila dicelupkan ke dalam air, dan tetap terdispersi beberapa waktu didalam air. Dalam keadaan kering berwarna putih atau cream, pada keadaan basah dan terkena sinar matahari akan berwarna mengkilap. Perbandingan soda dan kapur tinggi, suspensi koloidal mempunyai pH: 8,5-9,8, tidak dapat diaktifkan, posisi pertukaran diduduki oleh ion-ion sodium ( Na+ ).

b.                  Mg, ( Ca-bentonite – non swelling bentonite )

Tipe bentonite ini kurang mengembang apabila dicelupkan ke dalam air, dan tetap terdispersi di dalam air, tetapi secara alami atau setelah diaktifkan mempunyai sifat menghisap yang baik. Perbandingan kandungan Na dan Ca rendah, suspensi koloidal memiliki pH: 4-7. Posisi pertukaran ion lebih banyak diduduki oleh ion-ion kalsium dan magnesium. Dalam keadaan kering bersifat rapid slaking, berwarna abu-abu, biru, kuning, merah dan coklat. Penggunaan bentonite dalam pemurnian minyak goreng perlu aktivasi terlebih dahulu.

Endapan bentonit Indonesia tersebar di P. Jawa, P. Sumatera, sebagian P. Kalimantan dan P. Sulawesi, dengan cadangan diperkirakan lebih dari 380 juta ton, serta pada umumnya terdiri dari jenis kalsium (Ca-bentonit) . Beberapa lokasi yang sudah dan sedang dieksploitasi, yaitu di Tasikmalaya, Leuwiliang, Nanggulan, dan lain-lain. Indikasi endapan Na-bentonit terdapat di Pangkalan Brandan; Sorolangun-Bangko; Boyolali.

Genesa bentonite secara umum dapat dibagi menjadi 4 (empat) macam  yaitu :

a.       Terjadi karena pengaruh pelapukan.

Pelapukan sebagai faktor utama yang menyebabkan terbentuknya jenis mineral lempung. Dalam proses ini adalah komposisi mineral batuan, komposisi kimia dari air dan daya alir air tersebut dalam batuan. Secara umum faktor yang berpengaruh adalah iklim, macam batuan, relief dan tumbuh-tumbuhan yang berada di atas batuan tersebut.

b.      Terjadi karena pengaruh hydrotermal.

Proses hydrothermal mempengaruhi alterasi yang sangat lemah sehingga mineral-mineral yang kaya akan magnesium seperti hornblende dan biotit cenderung membentuk chlorit. Pada alterasi lemah kehadiran unsur-unsur logam alkali dan alkali tanah, kecuali kalium, mineral-mineral mika, ferramagnesia dan feldspar plagioklas umumnya akan membentuk montmorilonit terutama disebabkan adanya magnesium.  Kehadiran kalium baik yang berasal dari feldspar ataupun mika primer yang terbentuk karena alterasi hydrothermal membentuk zona-zona lingkaran dengan susunan serisit, kaolinit, montmorilonit dan chlorit.

c.       Terjadi karena akibat devitrivikasi dari tufa gelas yang diendapkan didalam air (lakustrin sampai neritic).

Proses tranformasi (ubahan) dari abu vulkanis yang mempunyai komposisi gelas akan menjadi mineral lempung (devitrivikasi) yang lebih sempurna terutama pada daerah danau, lautan dan cekungan sedimentasi. Tranformasi dari gunung berapi yang sempurna akan terjadi apabila debu gunung api diendapkan dalam cekungan seperti danau dan laut. Bentonit yang terjadi akibat proses tranformasi umumnya bercampur dengan sedimen laut lainnya yang berasal dari daratan seperti batu pasir dan lanau.

d.      Terjadi karena proses pengendapan kimia dalam suasana basa ( alkali ) dan sangat silikan.

Proses pengendapan bentonit secara kimiawi dapat berbentuk tidak saja dari tufa tetapi dapat berupa endapan sedimen dalam suasana basa (alkali) yang sangat silikan (authigenic neoformation) dan terbentuk pada cekungan sedimen yang bersifat basa dimana unsur pembentukannya antara lain karbonat, silika pipih, phospat laut dan unsur lainnya yang bersenyawa dengan unsur alluminium dan magnesium.

Berdasarkan kenampakan di lapangan terutama pengamatan secara megaskopis terhadap beberapa singkapan bentonit yang muncul pada beberapa daerah diketahui bahwa endapan bentonit yang terbentuk pada daerah Wonosari dan sekitarnya, terjadi karena adanya proses pelapukan secara dominan yang dicirikan dengan adanya perubahan warna pada beberapa daerah yang masih termasuk di dalam proses pembentukannya dimana adanya cekungan dan daerah dataran sedang.

Bentonit dapat digunakan untuk memperkecil nilai resistansi pembumian (grounding sistem). Bentonit  yang biasa digunakan untuk sistem pembumian adalah bentonit dengan Tipe Na dengan pH 10. Hal ini dikarenakan bentonit dengan pH > 7 memiliki sifat basa dimana basa tidak akan menyebabkan korosi dan akan menjaga kandungan phosphor pada tanah sehingga tanah akan tetap subur.

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CYCLOHEXANONE

Cyclohexanone is the organic compound with the formula (CH₂)₅CO. The molecule consists of six-carbon cyclic molecule with aketone functional group. This colorless oil has an odor reminiscent of peardrop sweets as well as acetone. Over time, samples assume a yellow color due to oxidation. Cyclohexanone is slightly soluble in water, but miscible with common organic solvents. Billions of kilograms are produced annually, mainly as a precursor to nylon.

Cyclohexanone is produced by the oxidation of cyclohexane in air, typically using cobalt catalysts:

C₆H₁₂ + O₂ → (CH₂)₅CO + H₂O

This process co-forms cyclohexanol, and this mixture, called "KA oil" for ketone-alcohol oil, is the main feedstock for the production ofadipic acid. The oxidation involves radicals and the intermediacy of the hydroperoxide C₆H₁₁O₂H. In some cases, purified cyclohexanol, obtained by hydration of cyclohexene, is the precursor. Alternatively, cyclohexanone can be produced by the partialhydrogenation of phenol:

C₆H₅OH + 2 H₂ → (CH₂)₅CO

This process can also be adjusted to favor the formation of cyclohexanol.

Most cyclohexane goes into the production of intermediates for nylon, which has a variety of common applications such as clothing, tents and carpets as well as thermoplastics. Cyclohexane is also used as a solvent in chemical and industrial processes and recently has been substituted for benzene in many applications.

Michael Thang

08164850242

Source : wikipidia

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METHYLENE CHLORIDE

Methylene chloride is used as a solvent, especially where high volatility is required. It is a good solvent for oils, fats, waxes, resins, bitumen, rubber and cellulose acetate and is a useful paint stripper and degreaser. It is used in paint removers, in propellant mixtures for aerosol containers, as a solvent for plastics, as a degreasing agent, as an extracting agent in the pharmaceutical industry, and as a blowing agent in polyurethane foams. Its solvent property is sometimes increased by mixing with methanol, petroleum naphtha, or tetrachloroethylene. The Occupational Safety and Health Administration (OSHA) estimates that approximately 35,000 workers are exposed to methylene chloride.

Studies indicate that there is suggestive, but not absolute evidence that methylene chloride is a human carcinogen. Long-term respiratory exposure in excess of 25 parts per million (ppm) is reported to be associated with an increased risk of cancer of the bile duct and brain.

Short term (acute) airborne exposures to high concentrations more than 125 ppm may cause mental confusion, light-headedness, nausea, vomiting, and headache. Continued exposure may also cause eye and respiratory tract irritation. Exposure to methylene chloride may make symptoms of angina (chest pain) worse. Skin exposure to liquid methylene chloride may cause irritation. Liquid methylene chloride placed on the skin may cause chemical burns.

Activities where exposure to methylene chloride is possible is in using paint strippers, working in laboratories, and parts degreasing. These areas should be initially and periodically assessed for exposures.



Michael Thang
MC supplier ex. Samsung
08164850242 Read More..

AMP 95, 75

AMP-95

AMP™ is the premier, flagship product from ANGUS for paint and coatings. As a primary multifunctional amine, AMP offers more functionality, more ?exibility, and more value than other amines. This product is sold as AMP-95, AMP-90 and AMP-75 with 5%, 10% and 25% water added respectively to the active.

Trusted by formulators worldwide for its neutralizing and multifunctional capabilities, AMP-95 works well as a co-dispersant and provides outstanding film properties in finished formulations. Key benefits include improved pH stability, excellent scrub-resistance, optimal color acceptance, improved gloss and outstanding hiding power. 

AMP-95 is our premier primary amino alcohol, designed for use in all water-dilutable metalworking

fluids, especially where a colorless product is required. AMP-95 is used worldwide, providing superior

performance among commonly available amine products.

For any further  information and product available please feel free to contact me.

Michael Thang
08164850242  

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PARAXYLENE

p-Xylene is an aromatic hydrocarbon based on benzene with two methyl substituents. The “p” stands for para, identifying the location of the methyl groups as across from one another.
It is an isomer of xylene. Other isomers include o-xylene and m-xylene. p-Xylene is used on a large scale for the manufacture of terephthalic acid for polyester. Its polymer is known as parylene.
p-Xylene is produced by catalytic reforming of petroleum naphtha as part of the BTX aromatics (benzene, toluene and the xylene isomers) extracted from the catalytic reformate. The p-xylene is then separated out in a series of distillation, adsorption or crystallization and reaction processes from the m-xylene, o-xylene and ethylbenzene. Its melting point is the highest among this series of isomers, but simple crystallization does not allow easy purification due to the formation of eutectic mixtures.It is also highly flammable.

Effect on health

It is harmful to people's health. It can be breathed in, ingested and absorbed through skin. It has a stimulating effect on the respiratory tract and eyes, while high concentrations have a narcotic effect on the central nervous system.

What It's Used For

Paraxylene is primarily used as a basic raw material in the manufacture of terephthalic acid (TPA), purified terephthalic acid (PTA) and dimethyl-terephthalate (DMT). TPA, PTA and DMT are used to manufacture polyethylene terephthalate (PET) saturated polyester polymers. Polyesters are used to produce fibers and films. PET bottles are widely used for water because of its non-breakage properties as well as carbonated beverages because of good carbon dioxide barrier properties. In addition, they are light-weight, shatter-resistant and possess high tensile strength. Polyester uses include:

• Carbonated and non-carbonated beverage containers
• Containers for household chemicals, toiletries, cosmetics, etc.
• Fabrics for curtains, upholstery, clothing, etc.
• Microwave oven packaging material
• Films for x-rays, magnetic tapes, photographic film and electrical insulation
• Packaging for boil-in bags, processed meats, shrink films and blister packs

Also of extreme importance is the availability of various methods for recycling polyester and the wide acceptance of products produced from recycled polyester. 

For any further information please contact Michael Thang, PT. Point Sarana Sukses, +628164850242, michaelthang@pointsarana.com Read More..

DMSO

DMSO ( DIMETHYL SULFOXIDE )

DMSO is Dimethyl Disulfoxide as a safety solvent with properties as follows :

> Toxicity: virtually non-toxic
> High polarity and dialectric constant
> Excellent thermal stability when heated to 150° C for 24 hours, less than 0.1%
assay loss
> Safety: low vapor tension and high flash-point
> Recyclable: DMSO can usually be recovered and regenerated efficiently and
economically
> Compared to similar solvents,DMSO leads to an increase in reaction rates, higher
selectivity and yields and the ability to work at lower temperatures.

Markets and Applications
> Fine chemical organic synthesis: reaction medium
> Agrochemicals & coating: reaction solvents & formulations
> Paint stripping, cleaning and extraction: solvents
> Electronics: stripping or cleaning solvents, rinsing agents for semiconductors and
LCDs
> Synthesis of polymers ( such as Polyacrylonitrile, Polyvinylacetate and others) :
polymers

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