• 硬脂酸鎂 [557-04-0]

  • 英文名:Magnesium stearate
  • 別名:十八酸鎂 二堿式硬脂酸鎂
  • CAS號:557-04-0 分子式:C36H70O4MG 分子量:591.25
P131637-25g 硬脂酸鎂 [557-04-0] AR,Mg 4.0-5.0% 500g 90.00 促銷價:56.70
P131638-100g 硬脂酸鎂 [557-04-0] AR,Mg 4.0-5.0% 100g 36.00 促銷價:22.68
P131630-5g 硬脂酸鎂 [557-04-0] AR,Mg 4.0-5.0% 1kg 175.00 促銷價:110.25
P131635-500g 硬脂酸鎂 [557-04-0] USP,EP 500g 125.00 促銷價:78.75
P131632-2.5kg 硬脂酸鎂 [557-04-0] USP,EP 2.5kg 458.00 促銷價:288.54
訂貨編號 商品名稱 規(guī)格 包裝 單價 促銷價 會員價 數(shù)量
P131637-25g 硬脂酸鎂 [557-04-0] AR,Mg 4.0-5.0% 500g 90.00 56.70 登錄可見
P131637-25g 硬脂酸鎂 [557-04-0] AR,Mg 4.0-5.0% 500g 90.00 促銷價:56.70
P131638-100g 硬脂酸鎂 [557-04-0] AR,Mg 4.0-5.0% 100g 36.00 22.68 登錄可見
P131638-100g 硬脂酸鎂 [557-04-0] AR,Mg 4.0-5.0% 100g 36.00 促銷價:22.68
P131630-5g 硬脂酸鎂 [557-04-0] AR,Mg 4.0-5.0% 1kg 175.00 110.25 登錄可見
P131630-5g 硬脂酸鎂 [557-04-0] AR,Mg 4.0-5.0% 1kg 175.00 促銷價:110.25
P131635-500g 硬脂酸鎂 [557-04-0] USP,EP 500g 125.00 78.75 登錄可見
P131635-500g 硬脂酸鎂 [557-04-0] USP,EP 500g 125.00 促銷價:78.75
P131632-2.5kg 硬脂酸鎂 [557-04-0] USP,EP 2.5kg 458.00 288.54 登錄可見
P131632-2.5kg 硬脂酸鎂 [557-04-0] USP,EP 2.5kg 458.00 促銷價:288.54
  •  訂貨編號
  •  商品名稱
  •  規(guī)格
  •  包裝
  •  單價
  •  促銷價
  •  會員價
  •  數(shù)量

化學(xué)性質(zhì)

硬脂酸鎂外觀為細(xì)小的輕的白色粉末,手感滑膩,不溶于水、乙醇和乙醚,溶于熱水、熱乙醇,遇酸分解為硬脂酸和相應(yīng)的鎂鹽。有刺激性。 密度:1.028 熔點:130-140 ℃

質(zhì)量標(biāo)準(zhǔn)

  

項目                                             分析純
                                                  (AR)
純度Purity(Mg)                                   4.0%~5.0%(絡(luò)合法Complexometry)
外觀Appearance                                   細(xì)小,輕的白色粉末
干燥失重Loss on drying                           <6 %(1 g, 105°C)
重金屬Heavy metals                               ≤0.001%
痕量分析Trace analysis :
鉛Pb                                             < 10 ppm
氯Cl                                             < 0.1 %
硫酸根SO4                                        ≤0.5%
砷(As)                                           ≤3mg/kg
硬脂酸和棕櫚酸相對含量stearic and palmitic acid  ≥90.0%
硬脂酸Stearic acid                               ≥40.0%(GC)


品級Grade                                       Ph. Eur., BP  
硬脂酸stearic acid                              ≥40%(GC)
硬脂酸和棕櫚酸stearic and palmitic acid         ≥90%
鎂Mg basis (calc on dry sub.)                   4.0-5.0%
酸度或堿度acidity or alkalinity,                complies
微生物雜質(zhì)microbiological impurity,             in accordance
溶劑殘渣residual solvents,                      complies
干燥損失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
鎘Cd:                                           ≤3 ppm
鎳Ni:                                           ≤5 ppm
鉛Pb:                                           ≤10 ppm
鑒別試驗identity                                passes test

  

危險性質(zhì)

  

用途及存儲

廣泛用于食品添加劑、醫(yī)藥、涂料、塑料橡膠、紡織等行業(yè),主要作抗結(jié)劑、乳化劑、脫模劑、潤滑劑、穩(wěn)定劑、增稠劑、促進(jìn)劑,化妝品基料等。

  密封干燥保存。