国产精品日产欧美在线一区|一级A特黄毛片高清视频免费看|国产乱子视频一区二区三区免费看|国产精品va在线观看浪潮|"

SZSE:002741
Chemical Reagents
Zinc sulfate?heptahydrateCOA Report
  • CAS No.:7446-20-0
  • Molecular weight:287.56
  • Aliases:Goslarite
  • Molecular formula:ZnSO4·7H2O
  • UN Code:3077
  • EC No.:231-793-3
  • HS-No:28332920
Information
Specification category:
Product No. Product name specifications
1.09426.010 Zinc sulfate?heptahydrate AR500g
1.09426.020 Zinc sulfate?heptahydrate AR25kg
1.09426.030 Zinc sulfate?heptahydrate CP500g
1.09426.040 Zinc sulfate?heptahydrate CP25kg
Characteristic: Appearance and properties:Colorless orthorhombic crystals, granules or powder, odorless, taste astringent. Relative density(water=1):1.957 Relative vapor density(air=1):Not available Melting point(℃):100 Boiling point(℃):>500 Saturated vapor pressure:Not available Solubility:soluble in water Heat of combustion (kJ/mol):pointless Critical temperature (℃):pointless Critical pressure (Mpa):pointless Other Properties: 1.484 Technical indicators:
Item AR CP
Assay(ZnSO4 · 7H2O) ≥99.5% ≥99.0%
pH value (50g / L solution, 25 ℃) 4.4~6.0 4.4~6.0
Clarity test, number ≤3 ≤5
Water insoluble ≤0.01% ≤0.02%
Chloride (Cl) ≤0.0005% ≤0.002%
Total nitrogen (N) ≤0.001% ≤0.002%
Arsenic (As) ≤0.00005% ≤0.0002%
Sodium (Na) ≤0.05% ≤0.1%
Magnesium (Mg) ≤0.005% ≤0.01%
Potassium (K) ≤0.01% ≤0.02%
Calcium (Ca) ≤0.005% ≤0.01%
Manganese (Mn) ≤0.0003% ≤0.001%
Iron (Fe) ≤0.0005% ≤0.002%
Copper (Cu) ≤0.001% ≤0.005%
Cadmium (Cd) ≤0.0005% ≤0.002%
Lead (Pb) ≤0.001% ≤0.01%
Hazard characteristics:

IATA-DGR UN 3077 ENVIRONMENTALLY HAZARDOUS SUBSTANCE,SOLID,N.O.S.(ZINC SULFATE),9,Ⅲ

Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
日韩精品无码一区二区三区不卡 | 日韩欧美亚洲每日更新在线观看 | 乱色精品无码一区二区国产盗 | 欧美午夜精品久久久久久浪潮 | 免费无遮挡无码永久在线观看视频 | 国产精品女人高潮毛片视频 | 让少妇高潮无乱码高清在线观看 | 国产a一级无码毛片一区二区三区 | 精品国精品国产自在久国产应用 | 内射无码AV-区二区在线观看 | 国产成人精品高清不卡在线 | 日韩欧美麻豆不卡一区二区 | 欧美午夜精品一区二区蜜桃 | 内射人妻无码色AV无码 | 日韩精品无码一区二区三区不卡 | 最近中文mv字幕免费高清在线7 | 精品乱码一区内射人妻无码 | 亚洲av无码av在线影院 | 亚洲午夜Av无码一区二区 | 欧美日韩一级二级一区二区 | 亚洲精品国产综合久久一线 | 人妻少妇偷人精品无码免费 | 特级毛片内射WWW无码 | 蜜桃www视频高清在线观看 | 亚洲欧美国产精品专区久久 | 国产午夜精品一本在线观看 | 中文字幕一区二区三区精华液 | 超碰97人人做人人爱亚洲 | 在线观看免费小视频网站国产 | 在线看片免费人成视久网会所 | 国产婷婷色一区二区三区在线 | WWW国产精品内射老师 | 日韩AV在线永久免费观看 | 欧美精品a∨在线观看不卡 国产精品99久久久精品无码 | 国产又粗又猛又黄又爽无遮挡 | 国产l精品国产亚洲区 | 在线观看中文字幕精品 | 51国产午夜精品免费视频 | 久久久久人妻一区精品色戒 | 丝袜av一区二区三区人妻 | 一级av一片久久免费观看 |