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硬脂酸镁

硬脂酸镁 [557-04-0]

  • Magnesium stearate
  • CAS:557-04-0      
  • 分子式:C36H70O4MG
  • 分子量:591.25
  • MDL:MFCD00036391
  • EINECS:209-150-3
  • 别名:十八酸镁 二碱式硬脂酸镁
上一个:氢氧化镁
下一个:乙酸镁,四水
产品货号商品名称规格包装售价(RMB)库存量数量操作备注
H1142116硬脂酸镁 [557-04-0]AR250g45.00>10 CC MG C54 CH
H1142114硬脂酸镁 [557-04-0]AR500g85.00>10 CC MG C54 CH
H1142115硬脂酸镁 [557-04-0]USP,EP500g85.00>10 CC MG C54 CH
化学性质质量标准危险性质用途及储存
化学性质
硬脂酸镁外观为细小的轻的白色粉末,手感滑腻,不溶于水、乙醇和乙醚,溶于热水、热乙醇,遇酸分解为硬脂酸和相应的镁盐。有刺激性。 密度:1.028 熔点:130-140 ℃
质量标准
  

项目                                             分析纯
                                                  (AR)
纯度Purity(Mg)                                   4.0%~5.0%(络合法Complexometry)
外观Appearance                                   细小,轻的白色粉末
干燥失重Loss on drying                           <6 %(1 g, 105°C)
重金属Heavy metals                               ≤0.001%
痕量分析Trace analysis :
铅Pb                                             < 10 ppm
氯Cl                                             < 0.1 %
硫酸根SO4                                        ≤0.5%
砷(As)                                           ≤3mg/kg
硬脂酸和棕榈酸相对含量stearic and palmitic acid  ≥90.0%
硬脂酸Stearic acid                               ≥40.0%(GC)


品级Grade                                       Ph. Eur., BP  
硬脂酸stearic acid                              ≥40%(GC)
硬脂酸和棕榈酸stearic and palmitic acid         ≥90%
镁Mg basis (calc on dry sub.)                   4.0-5.0%
酸度或碱度acidity or alkalinity,                complies
微生物杂质microbiological impurity,             in accordance
溶剂残渣residual solvents,                      complies
干燥损失loss on drying, 105 °C                 ≤6.0%
酸值acid value                                  195?210(fatty acid)
氯chloride (Cl-):                               ≤1000 ppm
硫酸根sulfate (SO42-):                          ≤5000 ppm
镉Cd:                                           ≤3 ppm
镍Ni:                                           ≤5 ppm
铅Pb:                                           ≤10 ppm
鉴别试验identity                                passes test

  
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