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Home » Glycol
Glycol

Propylene Glycol

Mono Propylene Glycol USP/IND also known as propane-1,2-diol is a colorless, odorless liquid which is generally recognized as safe (GRAS) by the U.S. Food and Drug Administration (FDA) in 21 CFR § 184.1666, for use as a direct food additive under the conditions prescribed. It is approved by the U.S. FDA for certain indirect food additive uses.

Specifications:
Product Name Propylene Glycol
Synonyms propane-1,2-diol, a-propylene glycol, 1,2-propanediol, 1,2-Dihydroxypropane, methyl ethyl glycol, methylethylene glycol, PG
CAS No. 57-55-6
Color & Physical Form Clear Colorless liquid
Formula C3H8O2
Assay 99.5% Min
Molecular Wt. 76.09 g/mol
Specific Gravity (USP)@25/25 °C 1.035 - 1.037
Specific Gravity @ 20/20 °C 1.037 - 1.039
IBP 186 °C Min
DP 188 °C Max
Chloride 1 ppm Max
Iron as Fe 0.1 ppm Max
Water Content 700 ppm Max
Color 10 APHA Max
Acidity 30 ppm Max
SO4 10 ppm Max
Heavy Metal 5 ppm Max
Residue 20 ppm Max


Application:
Propylene Glycol USP/EP grade:
  • Solvent in the flavor concentrate and fragrance industry, an excipient in elixirs and pharmaceuticals, and a coupling agent in sunscreens, shampoos, shaving creams and other personal care products.
  • Wetting agent for natural gums to simplify compounding.

Propylene Glycol Industrial grade:
  • Raw material to produce high-performance unsaturated polyester resins (UPR) used for marine construction, gel coats, sheet molding compounds and synthetic marble castings.
  • Chemical intermediate in the production of resins for paints and varnishes.
  • Solutions with water to make antifreeze, heat-transfer fluids and aircraft and runway deicing fluids.
  • Solvent in printing inks.
  • Solvent and enzyme stabilizer in laundry detergents.
  • Stabilizer in hydraulic fluids.
  • Plasticizer to improve the process ability of plastics.

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Ethylene Glycol

Ethylene Glycol (also known as MEG) is a clear, colorless, virtually odorless, and slightly viscous liquid. It is miscible with water, alcohols, and many organic compounds, and has the formula C2H6O2. It is the most important of the commercially available ethylene glycols as it has many industrial applications.

Specifications:
Product Name Ethylene Glycol
Synonyms 1,2-Ethanediol, Monoethylene glycol, MEG
CAS No. 107-21-1
Color & Physical Form Clear Colorless liquid
Formula C2H6O2
Assay 99.8% Min
Molecular Wt. 62.07 g mol-
Density 1.1132 g/cm3
Color 5 Pt/Co Max
Water 500 ppm Max
DEG 0.08% Max
Sp.Gr.@ 20/20 Deg C 1.1151 - 1.1156
Dist. Range 5 % 95 % 196 °C Min
199 °C Max
UV Transmittance
@ 220 nm
@ 275 nm
@ 350 nm

70% Min
95% Min
99% Min
Acidity as CH3COOH 10 mg/kg Max
Aldehyde as CH3CHO 10 mg/kg Max
Iron as Fe 0.1 mg/kg Max
Ash 10 mg/kg Max
Chloride 0.2 mg/kg Max


Application:
  • Ethylene Glycol as it is a vital ingredient in the production of polyester fibers, films, and resins, one of which is polyethylene terephthalate (PET).
  • The second largest market for MEG is in antifreeze applications where it is a component in the manufacture of antifreeze, coolants, aircraft anti-icer, and de-icers.
  • Ethylene Glycol also has humectant properties and this makes it ideal for use in the fibre treatment of textiles, the paper industry, and in adhesives, inks, and cellophane.
  • Ethylene Glycol is also a used as a dehydration agent in natural gas pipelines where it inhibits the formation of natural gas clathrates before being recovered from the gas and reused.

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Polyethylene Glycol

Polyethylene glycols (poly-oxyethylene) meets Indian and international pharmacopoeia, such as IP / USP / NF / (PEG) specifications. These are essentially non-toxic, stable and versatile solvents that find application in the pharmaceutical, cosmetic, oral care, automotive, textile, paint, printing, resin and plastic, and ceramic industries.

Range Of Polyethylene Glycol:
  • PEG200
  • PEG300
  • PEG400
  • PEG600
  • PEG1500
  • PEG4000
  • PEG 6000

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