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2018/11/15 22:17:44打印记事本记算器
氢氧化镁

氢氧化镁 [1309-42-8]

  • Magnesium hydroxide
  • CAS:1309-42-8      
  • 分子式:MGH2O2;MG(OH)2
  • 分子量:58.32
  • MDL:MFCD00011104
  • EINECS:215-170-3
  • 别名:苛性镁石,轻烧镁砂
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产品货号商品名称规格包装售价(RMB)促销价(RMB)库存量数量操作备注
H1142110氢氧化镁 [1309-42-8]Ultra pure,≥99.0% (KT)50g195.00->10
H1142111氢氧化镁 [1309-42-8]Ultra pure,≥99.0% (KT)250g590.00->10
H1142113氢氧化镁 [1309-42-8]AR100g40.00
促销价
22.00
>10
H1177180氢氧化镁 [1309-42-8]AR500g92.00
促销价
52.00
>10
化学性质质量标准危险性质用途及储存
化学性质
白色无定形粉末,溶于稀酸和铵盐溶液,当有水存在时,能吸收二氧化碳。几乎不溶于水(1:80000),不溶于醇,在水中呈微碱性。水浆状pH为9.5-10.5。有刺激性。 密度:2.36 熔点:350℃
质量标准
  

Q/(HG)SJ 286-91
项目Item                            分析纯   化学纯
                                              (AR)       (CP)
含量[Mg(OH)2]Assay,%                     ≥ 95.0       95.0
灼烧失重Ignition loss,%                     30.0~33.0  30.0~33.0
水溶物Soluble matter in hydrochloric acid   ≤ 0.5         --
盐酸不溶物lnsoluble in hydrochloric acid    ≤ 0.03       0.1
硝酸盐(NO3)Nitrate,%                        ≤ 0.005      0.05
氯化物(Cl)Chloride,%                        ≤ 0.02       0.05
碳酸盐Canbonate                                合格       合格
铁(Fe)Iron,%                                ≤ 0.002      0.01
钙(Ca)Calcium,%                             ≤ 0.05       0.1
重金属(以Pb计)Heavy metals,%                ≤ 0.005      0.01


品级Grade                               超纯级  
                                 (Ultra pure,≥99.0% (KT))
含量assay                              ≥99.0% (KT)
不溶物Insoluble matter,                 passes filter test
酸溶性solubility 5 M HCl:               soluble0.1 M at 20 °C, clear, colorless
氯chloride (Cl-):                       ≤500 ppm
硫酸根sulfate (SO42-):                  ≤1000 ppm
阳离子cation traces by ICP Atomic emission
  As:                                   ≤0.1 ppm
  Ba:                                   ≤10 ppm
  Bi:                                   ≤50 ppm
  Ca:                                   ≤5000 ppm
  Cd:                                   ≤5 ppm
  Co:                                   ≤5 ppm
  Cr:                                   ≤5 ppm
  Cu:                                   ≤5 ppm
  Fe:                                   ≤100 ppm
  K:                                   ≤50 ppm
  Li:                                   ≤5 ppm
  Mn:                                   ≤10 ppm
  Mo:                                   ≤5 ppm
  Na:                                   ≤100 ppm
  Ni:                                   ≤100 ppm
  Pb:                                   ≤5 ppm
  Sr:                                   ≤10 ppm
  Zn:                                   ≤5 ppm
λ 0.1 M in 5 M HCl
UV absorption
λ: 260 nm A:                            ≤0.030
λ: 280 nm A:                            ≤0.025

  
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