无码精品一区久久久台湾,男人女人天堂AV,成人一级黄色片无码,av一区二区三区一天,97超碰电影

ABOUT US PRODUCTS NEWS CENTER CULTURE CONTACT US 中文版

     Ethylene glycol 

    Ethylene glycol

    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: -13.2οC
    Boiling point: 197.85οC
    Density: Relative density (water=1) 1.1155(20οC); Relative density (Air=1): 2.14
    Appearance and properties: Colorless, odorless, sweet, viscous liquid   Vapor pressure: 0.06mmHg(0.06mm Hg)/20οC   
    Flash point: 111.1οC   Viscosity: 25.66mPa.s(16οC
    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.


    Copyright(C)2019 , Jinan Shijitongda Chemical Co.,Ltd. All Rights Reserved.  Supported by  ChemNet  ChinaChemNet Toocle Copyright Notice
    亚洲AV在线免费观看| 人妖最猛网站视频777| 91资源国产| 超碰在线三级片| 亚洲AV日韩AV在线| 95色色| 色色a片| 日韩网站AV| 日韩AVAV在线| 97人人操人人操| 国产A级片6| 娇妻一区二区三区| 在线免费观看av一区| 亚洲综合成人网| 黄色av小电影| 日韩黄色AAA片| a级片网站| 国产日韩AV在线| 亚洲AAA在线观看| 777777妇女亚洲| www.97超碰| 超碰人人操97| 日韩国无码久一起| 成人3级黄色视频| 无码毛片电影| 婷婷情色五月天| 日本日逼A级一级片| 东京热女w姦| 久久久迷奸| 伊人久艹91av| 亚洲电影AV| 特级黄色Av日韩| 无码日韩A片| 成人AV在线看| 日韩男女操视频在线| 超碰97电影| 欧美一级黃色录像| 日韩AV成人网站| AV丁香社区美女| 日韩二级片| 人人操人人干av|