PG Propylene Glycol CAS 57-55-6 USP Grade

Product Description:

Product Application: 

Its most important end use is in the production of unsaturated polyester resins that, in turn, gointo items that effect our daily lives, like water tanks, or our leisure time, like sailing boat. 

It can be obtained by hydrolysis of propylene oxide: CH3CHCH2+H2O[H+]→CH3CH(OH)CH2OH Direct hydration method Propylene oxide and water are mixed at a molar ratio of 1:15, and reacted at 150~200℃ and 1.2~1.4MPa for 30 minutes , an aqueous solution containing 16% Propylene Glycol is obtained, and the finished product is obtained by evaporation and distillation. The catalytic hydrolysis reaction is carried out under the catalysis of sulfuric acid or hydrochloric acid. Add 0.5% to 1.0% dilute sulfuric acid to 10% to 15% propylene oxide aqueous solution, and hydrolyze at 50 to 70°C; the hydrolyzate is neutralized, concentrated under reduced pressure, and refined to obtain the finished product.

It canalso be used as plasticizer, surface active agent, emulsifying agent and demulsifying agent, mould inhibitor, antiseptic for fruit, ice inhibitor and moisture preserving agent for tobacco.

Propylene Glycol, Mannitol, Menthol, Isopropyl Alcohol, Glacial Acetic Acid are our best selling products and welcome to contact us for more information