Kairav Chemofarbe Industries Ltd.Kairav Chemofarbe Industries Ltd.


Pharmaceutical Chemicals
We manufacture, supply and export a wide range of well formulated pharmaceutical chemicals like 1,4-dioxane, 1,3-dioxane, diethylene glycol, monoethylene glycol, sodium acetate, diglyme, methoxyethyl etc., used in high demand applications. We started our product line up extending from water treatment chemicals to the formulation of 1,4 Dioxane in India with our manufacturing facility at MIDC Taloja in Maharashtra. Our pharmaceutical chemicals find applications in several multinational pharmaceutical and drug companies across the globe. Our product range includes:


1,4-Dioxane
1,4-Dioxane

We provide our clients a quality range of well formulated 1,4 Dioxane chemicals that is also know in synonyms of diethylene dioxide, diethylene ether, 1,4 dioxacyclohexane, glycol ethylene ether and dioxyethylene ether. Provided in CAS No.: 123-91-1, the chemical has the molecular weight of 88.11.

The 1,4 Dioxane offered by us has following specifications:

  • Assay by GLC: 99.80%
  • Distillation Range: 99.5° ¿ 102°C
  • Peroxide Content: 10 PPM (Max)

Moisture Content:

  • (By Karl Fisher): 200-1000 PPM
  • Acidity (as acetic Acid): 0.004%
  • Density @ 20°C: 1.025 ¿ 1.035
  • Solubility in water: Complete
  • Non volatile matter: 30 PPM



1,3-Dioxane

We provide fine quality 1,3-dioxane chemical that is considered either solvent or reagent for chemical processes due to its physical, chemical and toxicological properties. This cyclic reaction product of ethylene glycol and formaldehyde exhibits behavior typical of ethers or acetals as per the conditions. It doesn’t exhibit any unusual toxic effects. It is neither explosive nor spontaneously flammable and has no disagreeable odor.

Under neutral or basic conditions, dioxolane has excellent solvent performance characteristics and should be considered as an attractive substitute for chlorinated solvents, ethers and ketones. It is a colorless liquid and it is miscible with water and most common organic solvents. It is a very good solvent for lacquers and resins and can be used for paint remover and thinner. It is also used in mixtures with glycol or glycol ethers to dissolve difficult-to-dissolve components such as pesticides, herbicides and wood preservatives. It is used as stabilizer for glues, impregnating resins and dispersions.

1,3-dioxolane has been successfully substituted for ethylene dichloride, methylene chloride and THF in specific applications. 1,3-dioxolane may be especially suitable as an economically attractive substitute for THF as the two substances are similar in many respects. Both have similar molecular weights, viscosity, dielectric constants and dipole moments. Dioxolane has higher boiling and flash points but it does not form peroxides as readily as THF.

Dioxane can also substitute for DMSO, DEE and DCM (methylene chloride). It should be considered as a potential substitute for MEK, that is on SARA 313. Dioxane is not a carcinogen and has a low odor threshold. It is also used as a copolymerizing agent with trioxane in the manufacture of polyacetal resins. 1,3-dioxolane has been used with styrene (cationic copolymerization) to make block copolymers.

Dioxane used in adhesives solutions of crystalline polyesters is used in heat-sealable coatings and adhesive applications.The polyesters were formally known to be soluble only in highly toxic solvents such as dioxane and chlorindated solvents. Polyester resins, made from dibasic acids and diols, dibasic anhydrides and diols, and the lower alkyl esters of dibasic acids and diols, are soluble up to 40% by weight of solids in dioxolane.

Dioxane is specifically effective for high molecular weight, crystalline, long-chain linear polyesters. Preferred co solvents for this chemical are THF, acetone, toluene and ethyl acetate. Cross-linking agents are added to polyester resins to impart additional bond strength and chemical and heat resistance.

Some cross-linking agents are isocyanates such as toluene diisocynate, 4,4'-methylene-bis (diphenyl diisocyanate) 1,6-hexamethylene diisocyanate. Uses for these adhesives are heat-seal lids for food products such as butter, yogurt and jelly.They are used in packaging for foods to be microwaved or oven heated and as industrial laminates, such as in sail cloth, cable wrap, flexible circuitry and solar protection film.

Some specified application of 1,3-dioxolane are:

  • Reaction solvent for pharmaceutical manufacturing
  • Replacement for many chlorinated solvents
  • Lithium battery electrolyte solvent component
  • Copolymerization agent with trioxane and formaldehyde for manufacturing polyacetal resins
  • Copolymerization agent with styrene
  • Paint stripper
  • Glue stabilizer

1,3-Dioxane
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Diethylene Glycol
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Diethylene Glycol

The diethylene glycol chemical provided by us is known as any of a class of organic chemicals characterized by having separate two hydroxyl (-OH) groups. It exhibits high water solubility, hygroscopicity and reactivity with many organic compounds on usually linear and aliphatic carbon chain. The general formula is CnH2n(OH)2 or (CH2)n(OH)2.The wider meaning names include diols, dihydric alcohols, and dihydroxy alcohols.

Ethylene glycol
, HOCH2CH2OH, is the simplest member of the glycol family. Mono-, di- and triethylene glycols are the first three members of a homologous series of dihydroxy alcohols. Ethylene glycol is a colourless, odourless, involatile and hygroscopic liquid with a sweet taste.

Diethylene glycol (CH2OHCH2OCH2CH2OH)
is similar in properties to MEG, but with a higher boiling point, viscosity, and specific gravity. Diethylene glycol is used in the manufacture of unsaturated polyester resins, polyurethanes and plasticizers. It is a water-soluble liquid having boiling point 245 C and soluble in many organic solvents. It is used as a humectant in the tobacco industry and in the treatment of corks, glue, paper and cellophane.It is derived as a co-product with ethylene glycol and triethylene glycol.

Availability of DEG we formulate depends upon demand for derivatives of the primary product, ethylene glycol, rather than on DEG market requirements.It is used in the synthesis of morpholine and 1,4-dioxane.

Some specified applications of Diethylene Glycol are:

  • Anti-freezing and anti-icing additive
  • Intermediate in polymer production and chemical reaction
  • Solvent or plasticizer for plastic, lacquer, paint and varnish
  • Hydraulic, brake, thermal exchange fluids and fuel additive
  • Humidifying and plasticizing
  • Dehydrating
  • Coupling printing inks
  • Textile conditioning
  • Solvent for dyes in textile and leather finishing
  • Agricultural formulation
  • General purpose cleaners
  • Explosives manufacture
  • Electrolytic component
  • Humectant
  • Water-based coating
  • Preservative, rust remover, and disinfectant



Monoethylene Glycol

Apart from providing chemicals, we also provide monoethylene glycol (MEG) that is an important raw material for industrial applications.It is primarily used in the manufacture of polyester (PET) resins, films and fibers. It is also widely used in the production of antifreeze, coolants, aircraft, anticancer and deicers and solvents.

Some of the specified applications of monoethylene glycol are:

  • Polyester Resins
  • Antifreeze and Coolants
  • Chemical Intermediates
  • Heat Transfer Fluids

Monoethylene Glycol


Sodium Acetate
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Sodium Acetate

The sodium acetate we provide is also known as sodium ethanoate. It is the sodium salt of acetic acid and an inexpensive chemical produced in industrial quantities for a wide range of applications.

Sodium acetate is used in following applications:

  • Textile industry to neutralize sulfuric acid waste streams and as a photo resist while using aniline dyes
  • As a pickling agent in chrome tanning
  • Helps to retard vulcanization of chloroprene in synthetic rubber production
  • Added to food items as a preservative
  • Used in consumer heating pads or hand warmers
  • Used in "hot ice"



Potassium Hydrogen Phthalate

Our company formulates optimum quality potassium hydrogen phthalate chemicals that are also know as potassium acid phthalate, phthalic acid, monopotassium salt or potassium bithalate. Available in CAS No.: 877-24-7, it  has the molecular weight of 204.23.

Chemical Specification:

  • Description: White Compound
  • Solubility: 10% aq. Solution is Clear Colourless
  • Insoluble Matter in water: Max 0.0005%
  • Assay: Min 99%
  • pH (5% aq.slon.): Approx 4.0

Potassium Hydrogen Phthalate
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Diglyme
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Diglyme

We provide diglyme, or bis (2-methoxyethyl) ether, that is a solvent with high boiling point. The name "diglyme" is a portmanteau of diglycol methyl ether. It is an organic compound that is the dimethyl ether of diethylene glycol. It is a clear, colorless liquid with a slight ether-like odor. It is miscible with water, alcohols, diethyl ether, and hydrocarbon solvents. It is mainly used as a solvent in organic reactions. It has the ability to chelate small cations, leaving anions more active. Therefore, reactions involving organometallic reagents, such as grignard reactions or metal hydride reductions, may have significantly enhanced reaction rates.

A lithium cation being chelated by a diglyme molecule diglyme is also used as a solvent in hydroboration reactions with diborane. Its stability, even at high pH values, makes it an excellent solvent for reactions with strong bases or reactions that require high temperatures.








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