• 氢氧化镁 [1309-42-8]

  • 英文名:Magnesium hydroxide
  • 别名:苛性镁石,轻烧镁砂
  • CAS号:1309-42-8 分子式:MGH2O2;MG(OH)2 分子量:58.32
P131620-500g 氢氧化镁 [1309-42-8] 99% 500g 91.00 促销价:57.33
P131620-250g 氢氧化镁 [1309-42-8] 99% 100g 50.00 促销价:31.50
P131621-1kg 氢氧化镁 [1309-42-8] 99% 1kg 165.00 促销价:103.95
P131621-500g 氢氧化镁 [1309-42-8] GR 500g 113.00 促销价:71.19
P131621-100g 氢氧化镁 [1309-42-8] GR 100g 58.00 促销价:36.54
P131623-25g 氢氧化镁 [1309-42-8] nanopowder, <100 nm particle size (laser PSA), 99.8% trace metals basis 25g 871.00 促销价:696.80
P131620-5g 氢氧化镁 [1309-42-8] nanopowder, <100 nm particle size (laser PSA), 99.8% trace metals basis 5g 350.00 促销价:280.00
P131628-1g 氢氧化镁 [1309-42-8] nanopowder, <100 nm particle size (laser PSA), 99.8% trace metals basis 1g 125.00 促销价:100.00
订货编号 商品名称 规格 包装 单价 促销价 会员价 数量
P131620-500g 氢氧化镁 [1309-42-8] 99% 500g 91.00 57.33 特价产品 登录可见
P131620-500g 氢氧化镁 [1309-42-8] 99% 500g 91.00 促销价:57.33
P131620-250g 氢氧化镁 [1309-42-8] 99% 100g 50.00 31.50 特价产品 登录可见
P131620-250g 氢氧化镁 [1309-42-8] 99% 100g 50.00 促销价:31.50
P131621-1kg 氢氧化镁 [1309-42-8] 99% 1kg 165.00 103.95 特价产品 登录可见
P131621-1kg 氢氧化镁 [1309-42-8] 99% 1kg 165.00 促销价:103.95
P131621-500g 氢氧化镁 [1309-42-8] GR 500g 113.00 71.19 特价产品 登录可见
P131621-500g 氢氧化镁 [1309-42-8] GR 500g 113.00 促销价:71.19
P131621-100g 氢氧化镁 [1309-42-8] GR 100g 58.00 36.54 登录可见
P131621-100g 氢氧化镁 [1309-42-8] GR 100g 58.00 促销价:36.54
P131623-25g 氢氧化镁 [1309-42-8] nanopowder, <100 nm particle size (laser PSA), 99.8% trace metals basis 25g 871.00 696.80 登录可见
P131623-25g 氢氧化镁 [1309-42-8] nanopowder, <100 nm particle size (laser PSA), 99.8% trace metals basis 25g 871.00 促销价:696.80
P131620-5g 氢氧化镁 [1309-42-8] nanopowder, <100 nm particle size (laser PSA), 99.8% trace metals basis 5g 350.00 280.00 登录可见
P131620-5g 氢氧化镁 [1309-42-8] nanopowder, <100 nm particle size (laser PSA), 99.8% trace metals basis 5g 350.00 促销价:280.00
P131628-1g 氢氧化镁 [1309-42-8] nanopowder, <100 nm particle size (laser PSA), 99.8% trace metals basis 1g 125.00 100.00 登录可见
P131628-1g 氢氧化镁 [1309-42-8] nanopowder, <100 nm particle size (laser PSA), 99.8% trace metals basis 1g 125.00 促销价:100.00
  •  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

  

危险性质

  

用途及存储

糖的精炼,制药工业。

  密封干燥保存。