成人网站免费观看,99e久热只有精品8在线直播,亚洲综合无码明星蕉在线视频,亚洲精品一区二区三区中文字幕

SZSE:002741
Chemical Reagents
Zinc chlorideCOA Report
  • CAS No.:7646-85-7
  • Molecular weight:136.28
  • Aliases:Zinc chloride
  • Molecular formula:ZnCl2
  • UN Code:2331
  • EC No.:231-592-0
  • HS-No:28273985
Information
Specification category:
Product No. Product name specifications
1.09430.018 Zinc chloride AR500g
1.09430.028 Zinc chloride CP500g
1.09430.038 Zinc chloride AR25kg/Drum
1.09430.048 Zinc chloride CP500g
1.09430.058 Zinc chloride CP25kg/Sack
1.09430.068 Zinc chloride AR40kg/Drum
1.09430.078 Zinc chloride CP25kg
Characteristic: Appearance and properties:white powder,odorless,easy to deliquescence.
Relative density(water=1):2.91
Melting point(℃):365
Boiling point(℃):732
Concentration: Pure
Saturated vapor pressure:0.13/428
Solubility:soluble in water,ethanol,ether,glycerol,liquid ammonia.
Technical indicators:
Item AR CP
Assay(ZnCl2) ≥98.0% ≥98.0%
Clarity test Qualified 2 Qualified 4
Dilute hydrochloric acid insoluble matter ≤0.005% ≤0.01%
Sulfate (SO4) ≤0.01% ≤0.03%
Total nitrogen (as NO3 meter) ≤0.003% ≤0.006%
Ammonium (NH4) ≤0.005% --
Iron (Fe) ≤0.0005% ≤0.002%
Lead (Pb) ≤0.002% ≤0.01%
Basic salt (in ZnO count) ≤1.2% ≤2.4%
Not ammonium sulfide precipitate (as sulfate) ≤0.1% ≤0.3%
Hazard characteristics:

IATA-DGR UN 2331 ZINC CHLORIDE,ANHYDROUS,8,Ⅲ

Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
99视频偷窥在线精品国自产拍| 久久精品国产成人| 夜夜躁狠狠躁2021| 欧美日韩久久中文字幕| 在线a人片免费观看| 人妻无码全彩里番acg视频| 人妻丰满熟av无码区hd| 久久综合综合久久综合| 亚洲精品无码不卡av| 亚洲成年av天堂动漫网站| 日韩欧群交p片内射中文| 国产精品嫩草影院久久| 日本丰满老妇bbw| 狠狠躁夜夜躁人人爽天天天天| 欧美丰满老熟妇乱叫| 大学生粉嫩无套流白浆| 亚洲毛片多多影院| 国产精品无码久久久久久久久久| 男女作爱免费网站| 18禁裸乳无遮挡啪啪无码免费| 老头边吃奶边弄进去呻吟| 中文字幕人妻无码专区| 久久无码人妻丰满熟妇区毛片| 天堂√最新版中文在线天堂| 欧美成人aa大片| 国产精品无码一区二区牛牛| 国产成人久久综合77777| 国产成人综合久久三区| 日韩人妻无码精品久久免费一| 国模无码视频一区| 国产永久免费观看视频| 日韩免费视频| 人人妻人人超人人| 国产成人无码综合亚洲日韩| 亚洲日韩欧美国产另类综合 | 欧美亚洲国产手机在线有码| 亚洲一区av无码少妇电影| 动漫精品视频一区二区三区| 麻豆av福利av久久av| 亚洲老熟女av一区二区在线播放| 国产精品亚洲精品日韩已满|