Edit glycol 1,2-propanediol (1 SK industrial grade propylene glycol, propanediol) generally refers to a domestic glycol 1,2-propanediol, 2-propanediol as a chemical agent, and 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 dressing evenly domestic industrial grade propylene glycol, also used as a food-grade propylene glycol antifreeze Dow, also used cellophane, plasticizers and pharmaceutical industries. Physical and Chemical Properties Appearance: colorless viscous liquid absorbent stable, almost odorless and tasteless. Relative density (water = 1): 1.04 Vapor Pressure: 20 ℃ when 106Pa flash point: 99 ℃ (closed cup), 107 ℃ (open cup) specific heat capacity (20 ℃) ??2.49kJ / (. Kg ℃), heat of vaporization (101.3 kpa) 711kJ / kg. Self-ignition temperature: 421.1 ℃ Solubility: with water, ethanol and various organic solvents. Explosion limits: 2.6-12.6% V / V SK propylene glycol industrial grade _ _ Wong Road, Dongguan Domestic Chemical provided by Wong Road, Guangzhou Chemical Co., Ltd.. Wong Road, Guangzhou Chemical Co., Ltd. (wangluda.com/) strong, credible, in Guangzhou cosmetic ingredients industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead busy road up into the brilliant chemical and you work for a better future!