• 乙酸镁,四水 [16674-78-5]

  • 英文名:Magnesium acetate tetrahydrate
  • 别名:醋酸镁四水合物;乙酸镁四水合物
  • CAS号:16674-78-5 分子式:C4H6MGO4•4H2O 分子量:214.45
P131660-500g 乙酸镁,四水 [16674-78-5] 99% 500g 80.00 促销价:50.40
P131661-100g 乙酸镁,四水 [16674-78-5] 99% 100g 33.00 促销价:20.79
P131665-250g 乙酸镁,四水 [16674-78-5] 99%,用于分子生物学 250g 328.00
P131664-50g 乙酸镁,四水 [16674-78-5] 99%,用于分子生物学 50g 118.00
P131668-100g 乙酸镁,四水 [16674-78-5] 99.998% metals basis 100g 2980.00
P131667-25g 乙酸镁,四水 [16674-78-5] 99.998% metals basis 25g 798.00
P131666-500g 乙酸镁,四水 [16674-78-5] ACS 500g 98.00
订货编号 商品名称 规格 包装 单价 促销价 会员价 数量
P131660-500g 乙酸镁,四水 [16674-78-5] 99% 500g 80.00 50.40 登录可见
P131660-500g 乙酸镁,四水 [16674-78-5] 99% 500g 80.00 促销价:50.40
P131661-100g 乙酸镁,四水 [16674-78-5] 99% 100g 33.00 20.79 登录可见
P131661-100g 乙酸镁,四水 [16674-78-5] 99% 100g 33.00 促销价:20.79
P131665-250g 乙酸镁,四水 [16674-78-5] 99%,用于分子生物学 250g 328.00 328.00 登录可见
P131665-250g 乙酸镁,四水 [16674-78-5] 99%,用于分子生物学 250g 328.00
P131664-50g 乙酸镁,四水 [16674-78-5] 99%,用于分子生物学 50g 118.00 118.00 登录可见
P131664-50g 乙酸镁,四水 [16674-78-5] 99%,用于分子生物学 50g 118.00
P131668-100g 乙酸镁,四水 [16674-78-5] 99.998% metals basis 100g 2980.00 2980.00 登录可见
P131668-100g 乙酸镁,四水 [16674-78-5] 99.998% metals basis 100g 2980.00
P131667-25g 乙酸镁,四水 [16674-78-5] 99.998% metals basis 25g 798.00 798.00 登录可见
P131667-25g 乙酸镁,四水 [16674-78-5] 99.998% metals basis 25g 798.00
P131666-500g 乙酸镁,四水 [16674-78-5] ACS 500g 98.00 98.00 登录可见
P131666-500g 乙酸镁,四水 [16674-78-5] ACS 500g 98.00
  •  订货编号
  •  商品名称
  •  规格
  •  包装
  •  单价
  •  促销价
  •  会员价
  •  数量

化学性质

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

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

   

危险性质

   

用途及存储

用于制备乙酸铀酰镁,分析试剂。

    密封干燥保存。