Propylene glycol is a clear, colorless and\u00a0hygroscopic\u00a0liquid. Propylene glycol contains an asymmetrical carbon atom, so it exists in two\u00a0enantiomers. The commercial product is a\u00a0racemic\u00a0mixture. Pure optical isomers can be obtained by hydration of optically pure\u00a0propylene oxide.<\/p>\n
The freezing point of water is depressed when mixed with propylene glycol owing to the effects of dissolution of a solute in a solvent (freezing-point depression). In general, glycols are non-corrosive, have very low volatility and very low toxicity; however, the closely related\u00a0ethylene glycol\u00a0(a key ingredient in\u00a0antifreeze) is toxic to humans and to many animals.<\/p>\n","protected":false},"excerpt":{"rendered":"
Other names: \u03b1-Propylene glycol, 1,2-Propanediol, 1,2-Dihydroxypropane, Methyl ethyl glycol (MEG), Methylethylene glycol<\/b><\/p>\n
Propylene glycol\u00a0(IUPAC name:\u00a0propane-1,2-diol) is a synthetic\u00a0organic compound\u00a0with the\u00a0chemical formula\u00a0C3<\/sub>H8<\/sub>O2<\/sub>. It is a viscous colorless liquid which is nearly odorless but possesses a faintly sweet taste. Chemically it is classed as a\u00a0diol\u00a0and is\u00a0miscible\u00a0with a broad range of solvents, including\u00a0water,\u00a0acetone, and\u00a0chloroform.<\/p>\n CAS: 57-55-6<\/p>\n","protected":false},"featured_media":6175,"template":"","meta":[],"product_brand":[],"product_cat":[199,209,196,200,201,202,203],"product_tag":[],"class_list":{"0":"post-12872","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-all-products","7":"product_cat-construction-industry","8":"product_cat-gardening","9":"product_cat-antifreeze-fluids","10":"product_cat-car-and-machine-chemicals","11":"product_cat-household-chemicals","12":"product_cat-pharmaceutical-industry","14":"first","15":"instock","16":"taxable","17":"shipping-taxable","18":"purchasable","19":"product-type-variable","20":"has-default-attributes","21":"rtwpvg-product"},"yoast_head":"\n