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BrandCodow
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Product No.CD100167
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CAS No.7446-20-0
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StandardGB/T 666-2011
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Packge
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This product can be used for titration analysis, qualitative and quantitative analysis, etc. It should be stored in a cool, ventilated place, sealed, and used within its expiration date. To obtain the product's Certificate of Analysis (COA), please visit www.howeipharm.com to view and download it.
Standard : GB/T 666-2011 化学试剂 七水合硫酸锌(硫酸锌)
Product No. : CD100167
Product Name : Zinc sulfate heptahydrate
Product Spec. : 分析纯 AR,≥99.5%
Packges : 500g
CAS号 : 7446-20-0
分子式 : ZnSO4 · 7H2O
分子量 : 287.56
酶学委员会编号 : 231-793-3
MDL编号 : MFCD00149894
颜色外观 Color Appearance : 白色结晶 White crystal
含量 Assay(ZnSO4·7H2O) : ≥99.5%
pH 值 pH value(50g/Lsolution),25℃ : 4.4~6.0
澄清度试验 Clarity of solution : 合格 Pass
水中不溶物 Insoluble matter in water : ≤0.01%
氯化物 Chloride(Cl) : ≤0.0005%
总氮 Total nitrogen(N) : ≤0.001%
砷 Arsenic(As) : ≤0.00005%
钠 Sodiun(Na) : ≤0.05%
镁 Magnesium(Mg) : ≤0.005%
钾 kalium(K) : ≤0.01%
钙 Calcium(Ca) : ≤0.005%
锰 Manganese(Mn) : ≤0.0003%
铁 Iron(Fe) : ≤0.0005%
铜 Copper(Cu) : ≤0.001%
镉 Cadmium(Cd) : ≤0.0005%
铅 Lead(Pb) : ≤0.001%
熔点 Melting range, ℃ : 100 ℃
Shelf Life : 730 Days
COA : Have COA





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