Ethylene glycol is a colorless, slightly sticky liquid glycol support online ordering, the boiling point is 197.4 ℃ glycol, the freezing point is -11.5 ℃, can be mixed with water in any proportion. Due to changes in the cooling water vapor pressure, freezing point significantly reduced after mixing. Degree of reduction within a certain range with the content of the ethylene glycol increases. When the content of ethylene glycol was 60%, the freezing point can be reduced to -48.3 ℃, exceeds this limit, the freezing point and have to be increased. 1. Simple structure: HO-CH2-CH2-OH Formula: C2H6O2 Molecular weight: 62.07 (according to 1997 international atomic mass) 2, Type: ethylene at room temperature is a colorless, odorless, sweet viscous liquid. The proportion of 1.1132, the boiling point of 197.2 ℃, freezing point -12.6 ℃, flash point 116 ℃, ignition point 412 ℃, the upper explosive limit of 3.2% ~ 15.3% (volume). Hygroscopic, miscible with water, ethanol and acetone, can greatly reduce the freezing point of water glycol free sample, slightly soluble in ether. 3, production methods: ethylene oxide from ethylene oxide in the catalytic silver, then by hydration of ethylene oxide glycol distillation system. 4. Purpose: The main 5, the implementation of standards: GB 4649-93 Index Name Index Excellent grade First grade Qualified Appearance colorless transparent colorless transparent without mechanical impurities without mechanical impurities colorless or slightly yellow no mechanical impurities platinum - cobalt color Degree: Before heating, heating No. ≤ hydrochloride, number ≤ 5 20 15 - 40 - Density (20 ℃) ??glycol 220 kg / barrel, g / cm31.1128 ~ 1.1138 1.1125 ~ 1.1140 1.1120 ~ 1.1150 boiling range (0 ℃, 0.10133MPa) initial boiling point, ℃ ≥ dry point, ℃ ≤ 196 dedicated glycol antifreeze, ethylene glycol Qingyuan City, Wan Jing Feng Chemical provided by the Guangzhou City Jing Feng Trading Co., Ltd .. Guangzhou City Jing Feng Trading Co. (www.wanjingfeng.com.cn) (www.fangzhizhuji.com) strong, credible, in Guangzhou 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 Wan Jing Feng Chemical and you hand into the brilliant, for a better future!