大地资源第三页高清在线观看免费,大地影视中文资源6,大地二资源在线高清免费,大地资源高清在线视频,大地二资源在线高清国语版,大地第二资源在线播放免费观看

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
欢迎光临： 安图县| 凤城市| 迭部县| 阿拉善左旗| 封开县| 镇康县| 秦安县| 和平区| 航空| 昔阳县| 鲁甸县| 扎囊县| 沙雅县| 乌兰浩特市| 襄汾县| 和林格尔县| 江城| 疏勒县| 恭城| 三原县| 通江县| 蓬溪县| 通山县| 汤阴县| 福安市| 凤凰县| 吉安县| 西乌珠穆沁旗| 张家川| 泸西县| 黔西县| 衢州市| 探索| 垫江县| 屏南县| 昆明市| 义乌市| 合作市| 铜鼓县| 安国市| 东乌珠穆沁旗|