性状  白色结晶，易潮解，易溶于水或醇，其水溶液呈中性或微酸性。剧毒。
熔点：80℃
密度：1.454
   
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  
   Q/(HG)SJ 730-1977
项目Item                                    分析纯　　　　   化学纯
　　　　　　　　　　　　　　　　　　         (AR)             (CP)
含量(C4H6MgO4•4H2O)Assay,%                  ≥99.0            97.0
澄清度试验Clarity                            合格　　　　　　 合格
水不溶物Insoluble matter,%                  ≤0.005           0.01
氯化物(Cl)Chloride,%                        ≤0.005           0.003
硫酸盐(SO4)Sulfate,%                        ≤0.005           0.01
磷酸盐(PO4)Phosphate,%                      ≤0.001           0.002
钙(Ca)Calcium,%                             ≤0.01            0.04
锰(Mn)Manganese,%                           ≤0.001           0.005
铁(Fe)Iron,%                                ≤0.0002          0.001
钡(Ba)Barium,%                              ≤0.003           0.05
重金属(以Pb计)Heavy metals,%                ≤0.0005          0.002

ACS级
项目名称Item                                ACS Grade
含量
[(CH3COO)2Mg·4H2O]Assay                    98.0-102.0%
水不溶物Insoluble matter                    ≤0.005%
硫酸盐(SO4)Sulfate                          ≤0.005%
钡(Ba)Barium(Ba)                            ≤0.001%
氯化物(Cl)Chloride(Cl)                      ≤0.001%
铁(Fe)Iron(Fe)                              ≤5ppm
钙(Ca)Calcium(Ca)                           ≤0.01%
锰(Mn)Manganese(Mn)                         ≤0.001%
钾(K)Potassium(K)                           ≤0.005%

品级Grade                               分子生物学 
                                       (for molecular biology)
外观Appearance                          白色粉末
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥99.0% (GC) 
熔点Melting point                       72-75 °C
氯chloride (Cl-):                       ≤0.001%
硫酸根sulfate (SO42-):                  ≤0.005%
Ba:                                     ≤0.001%
Fe:                                     ≤5 ppm
K:                                      ≤0.005%
Na:                                     ≤0.005%
重金属heavy metals (as Pb):             ≤5 ppm
DNase, RNase and protease,              none detected

99.998% metals basis:

外观Appearance                          White Crystals or Powder
X-射线衍射X-Ray Diffraction             Conforms to Structure
纯度Purity                              ≥99.99% Based on Trace Metals Impurities
镁Mg(Complexiometric EDTA)              11.1 - 11.6 %
ICP:                                    Confirms Magnesium Component Confirmed
总痕量金属杂质total metallic impurities ≤20ppm by ICP Atomic emission
贮存  密封保存。
用途  用于制备乙酸铀酰镁，分析试剂。
联合国编号  
Risk：  
Safety :  S24/25 -