硫酸锌 七水合物

等级

ACS reagent

质量水平

200

Agency

suitable for SM 5210

检测方案

99%
99.0-103.0% (ACS specification)

形式

crystals or chunks

reaction suitability

reagent type: catalyst
core: zinc

杂质

≤0.01% insolubles

pH值（酸碱度）

4.4-6.0 (25 °C, 5%)

溶解性

water: soluble 965 g/L at 20 °C

痕量阴离子

chloride (Cl-): ≤5 ppm
nitrate (NO3-): ≤0.002%

痕量阳离子

Ca: ≤0.005%
Fe: ≤0.001%
K: ≤0.01%
Mg: ≤0.005%
Mn: ≤3 ppm
NH4+: ≤0.001%
Na: ≤0.05%
Pb: ≤0.003%