With water, ethanol and various organic solvents. Propylene glycol can be used as the raw material of unsaturated polyester resins. In cosmetics, toothpaste and soap with glycerin or sorbitol can be used with a wetting agent. Humidity is used in hair dye, hair leveling agent in the production of propylene glycol, propylene glycol is also used as an antifreeze technology, also used in cellophane, plasticizers and pharmaceutical industries. Appearance: colorless viscous liquid absorbent stable propylene glycol, almost tasteless and odorless. Relative density (water = 1): 1.04 Vapor Pressure: 20 ℃ when 106Pa flash point: 99 ℃ (closed loop), 107 ℃ (open-loop) the specific heat capacity (20 ℃) ??2.49kJ / (kg ℃.), Heat of vaporization (101.3kpa ) 711kJ / kg. Self-ignition temperature: 421.1 ℃ Solubility: with water, ethanol and various organic solvents propylene glycol: unsaturated polyester edited by dicarboxylic acid (or anhydride) with a diol prepared by the condensation polymerization of unsaturated linear thermosetting resin. The polyester in a liquid vinyl monomer (e.g. 18% to 40% styrene or a mixture of styrene and methyl methacrylate) was crosslinked cured, and become the body structure. Production of propylene glycol _ _ Lacey Wei Wei Connaught Chemical provided by Qingdao Sino Chemical Co. Qingdao Wei Connaught Chemical Co. (www.qdweinuo.com) strong, credible, in Qingdao, Shandong and other chemical products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Wei Connaught Chemical and you hand into the brilliant, for a better future!