性状  白色粉末或针状晶体,易溶于水,不溶于乙醇及酮,在空气中逐渐风化。
   
备注:  以上描述，仅作参考，并不表示您收到的产品，与此项描述完全相符，产品的出厂标准，请参见质量标准。
质量标准  
   GB/T 666-93
项目Item                                           分析纯    化学纯
                                                    (AR)     (CP)
含量(ZnSO4·7H2O)Assay,%                          ≥ 99.5     99.0
pH(50g/L溶液，25℃)                                4.4-6.0   4.4-6.0
澄清度试验Clarity                                     合格    合格
水不溶物Insoluble matter in water,%               ≤ 0.01     0.02
氯化物(Cl)Chloride,%                              ≤ 0.0005   0.002
总氮量(N)Total nitrogen,%                         ≤ 0.001    0.002
砷(As)Arsenic,%                                   ≤ 0.00005  0.0002
锰(Mn)Manganese,%                                 ≤ 0.0003   0.001
铁(Fe)Iron,%                                      ≤ 0.0005   0.002
铜(Cu)Copper,%                                    ≤ 0.001    0.005
镉(Cd)Cadmium,%                                   ≤ 0.0005   0.002
铅(Pb)Lead,%                                      ≤ 0.001    0.01
硫化铵不沉淀物(以硫酸盐计)Substances not
precipitated by ammonium sulfide,%                ≤ 0.05     0.20

品级Grade                               用于植物细胞培养 
                                   (plant cell culture tested)
外观Appearance                          白色粉末
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥99.5% (EDTA titration)
水溶解试验solubility in water           Clear,10g/100ml 水
Plant cell culture test                 PASS

品级Grade                                 ACS

外观Appearance                          White crystals or chunks
纯度Purity(Complexiometric EDTA)        99.0 - 103.0 %
X射线衍射X-Ray Diffraction              Conforms to Structure
不溶物Insoluble matter                  ≤0.01 %(c = 10%, Water)
pH                                      4.4 - 6.0(c = 5%; Water at 25°C)
钙Calcium (Ca)                          ≤0.005 %
氯Chloride (Cl)                         ≤5 ppm
铁Iron (Fe)                             ≤0.001 %
钾Potassium (K)                         ≤0.01 %
镁Magnesium (Mg)                        ≤0.005 %
钠Sodium (Na)                           ≤0.05 %
铵Ammonia (NH4)                         ≤0.001 %
硝酸盐Nitrate (NO3)                     ≤0.002 %
锰Manganese                             ≤3 ppm
铅Lead (Pb)                             ≤0.003 %
贮存  密封保存
用途  分析试剂点滴分析法测定铜和氯酸盐。血清蛋白检验，测定钢铁及炉渣的含硫量。煤染剂、消毒剂、单倍体育种中配制各种培养基。
植物细胞培养中，作为锌源，以支持细胞膜的稳定性和基因调控。
联合国编号  3077
Risk：  R22 R41 R50/53
Safety :  S22 S26 S39 S46 S60 S61
Hazard :  Xn  N