在线看片免费人成视频免费大片_日本极品少妇videossexhd_地铁上的调教高h_好男人社区www在线观看_亚洲中文字幕无码乱线_日韩乱码人妻无码中文字幕久久 _国产裸模视频免费区无码_久久偷看各类wc女厕嘘嘘偷窃_日产国产精品亚洲系列_日本有码无码中文字幕

Yanhua Ethylene glycol　　Imported Ethylene glycol　Large amount of cheap wholesale of Ethylene glycol　Ethylene glycol general agent
99.9% Yanhua 230kg/drum4500
CAS No.: 107-21-1
Alias: 1,2-Ethanediol; glycol
Molecular formula: C₂H₆O₂; Simple structure: HO-CH₂CH₂-OH
Molecular weight: 62.07
Freezing point: -13.2^οC
Boiling point: 197.85^οC
Density: Relative density (water=1) 1.1155(20^οC); Relative density (Air=1): 2.14
Appearance and properties: Colorless, odorless, sweet, viscous liquid 　　Vapor pressure: 0.06mmHg(0.06mm Hg)/20^οC 　　
Flash point: 111.1^οC 　　Viscosity: 25.66mPa.s(16^οC
Ethylene glycol, also known as glycol, is the simplest diol.
Main use:
Mainly used in the preparation of polyester, polyester resin, hygroscopic agent, plasticizer, surfactant, synthetic fiber, cosmetic and explosive. Also used as dye/ink solvent, engine antifreeze and gas dehydrating agent.
Mainly used in the production of synthetic resin PET, fiber grade PET, bottle flake grade PET for mineral water bottle, alkyd resin, surfactant, glyoxal and explosive. Also used as antifreeze.