Factory Supplier Propylene Glycol/Pg, CAS No.: 57-55-6

Model NO.
CAS57-55-6
Colour
Colorless
Transport Package
Drum/IBC /Flexitank
Specification
215kg/Iron Drum, 1000kg/IBC Drum, 22mt/Flexitank
Trademark
Arctic
Origin
Shandong
HS Code
2905320000
Production Capacity
460000tons/Year
Reference Price
$ 891.00 - 990.00
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Product Description

Product description
Factory Supplier Propylene Glycol/Pg, CAS No.: 57-55-6
Propylene glycol is scientifically named as "1,2-propanediol", and has a chemical formula of CH3CHOHCH2OH and a molecular weight of 76.10. There is a chiral carbon atom in the molecule. Its racemate is a hygroscopic viscous liquid and is slightly spicy. It has a specific gravity of 1.036 (25/4 °C), a freezing point of-59 °C, and a boiling point of 188.2 °C, respectively 83.2 °C (1,333 Pa). It is miscible with water, acetone, ethyl acetate and chloroform, and is soluble in ether. It is soluble in many essential oils, but is not miscible with petroleum ether and paraffin oil. It is relatively stable to heat and light, and is more stable at low temperatures. Its L-isomer has a boiling point of 187 to 189 °C and a specific optical rotation [α] of D20-15.0°. It can be oxidized at high temperatures to propionaldehyde, lactic acid, pyruvic acid and acetic acid.  
Specifications
Item Specification Inspection methods Result
Appearance Colorless and
transparent, viscous
liquid without sediment
and  suspended matter 		Visual inspection Colorless ard
transparent, viscous
liquid without
sediment and
suspended matter
Pg  content wt%2 299.5 GB 29216-2012 99.8
Initial melting point,-c ≥185 CB/T 7534-2004 185
Dry point,ºC ≥189 GB/T 7534-2004 185
Relative density(25°ºC,259C) 1.0350-1.0370 GB/T 4472 - 2011 1.0371
Moisture,w,% ≤0.20 GR/T 6283-2008 0.08
Acid content(Consumption of lye),ml ≤1.67 GB 29216-2012 0.44
Burning residue,% ≤0.007 GB 29216-2012 0.0007
Lead  (Pb) ≤1 GB 5009.12-2023 0.0016
Product  grade high quality
Inspection Qualified
Application
Propylene glycol is used for similar applications as other glycols.
Propylene glycol is an important raw material for unsaturated polyester, epoxy resin, and polyurethane resin. The use amount in this area accounts for about 45% of the total consumption of propylene glycol. Such unsaturated polyester is used extensively for reinforced plastics and surface coatings. Propylene glycol is excellent in viscosity and hygroscopicity and is non-toxic, and thus is widely used as hygroscopic agent, antifreeze, lubricants and solvents in the food, pharmaceutical and cosmetic industry. In the food industry, propylene glycol reacts with fatty acid to give propylene ester of fatty acids, and is mainly used as food emulsifier; Propylene glycol is a good solvent for flavorings and pigments. Propylene glycol is commonly used as solvents, softeners and excipients, etc. in the pharmaceutical industry for the manufacture of various types of ointments and salves. Propylene glycol is also used as a solvent and a softener for cosmetic since it has good mutual solubility with various spices. Propylene glycol is also used as tobacco moisturizing agents, antifungal agents, food processing equipment lubricants and solvents for food marking ink. Aqueous solution of propylene glycol is an effective anti-freeze agent.
Factory Supplier Propylene Glycol/Pg, CAS No.: 57-55-6
Factory Supplier Propylene Glycol/Pg, CAS No.: 57-55-6
Certifications And  Payment method
Factory Supplier Propylene Glycol/Pg, CAS No.: 57-55-6
Factory Supplier Propylene Glycol/Pg, CAS No.: 57-55-6
Company Profile

 

Organic Intermediate