锌(Zn)Zinc,%                         ≤0.0005        0.001        0.002
砷(As)Arsenic,%                      ≤0.0005        0.0001       0.0002
重金属(以Pb计)Heavy metals,%         ≤0.0002        0.0005       0.001

ACS级
项目名称Item                         ACS Grade
含量[MgSO4•7H2O]Assay                98.0-102.0%
pH(5%溶液,25.0℃)pH                  5.0-8.2
水不溶物Insoluble matter             ≤0.005%
氯化物(Cl)Chloride(Cl)               ≤5ppm
硝酸盐(NO3)Nitrate                   ≤0.002%
铵(NH4)Ammonium                      ≤0.002%
钙(Ca)Calcium(Ca)                    ≤0.02%
锰(Mn)Manganese(Mn)                  ≤5ppm
钾(K)Potassium(K)                    ≤0.005%
钠(Na)Sodium(Na)                     ≤0.005%
锶(Sr)Strontium(Sr)                  ≤0.005%
重金属(以Pb计)Heavy metals(as Pb)    ≤5ppm
铁(Fe)Iron(Fe)                       ≤5ppm

99.99% metals basis

纯度Purity                            ≥99.99 %
ICP:                                  Confirms
总杂质Total Impurities                ≤200.0 ppm by Trace Metal Analysis 

品级Grade                  用于分子生物学和植物细胞培养级，≥99.0%
          (for molecular biology, for plant cell culture, ≥99.0%)
外观Appearance                        White Powder
水溶性Solubility                      Colorless, Clear,100mg/mL,H2O
纯化Purity Titration by EDTA          ≥99.0 %
钠Sodium (Na)                         ≤50 ppm
钾Potassium (K)                       ≤50 ppm
氯Chloride (CL)                       ≤5 ppm
铅Lead (Pb)                           ≤ 5 ppm
DNA酶DNAse Detection                  None Detected
内切酶Nickase                         None Detected
RNA酶RNAse Detection                  None Detected
植物细胞培养Plant Cell Culture Test   Pass
贮存  
用途  用作泻药，利胆药，用于导泻及十二脂肠导流。
联合国编号  
Risk：  
Safety :  S24/25 -
Hazard :