商品名：氢氧化镁

别 名：苛性镁石,轻烧镁砂
Magnesium hydrate
Milk of magnesia
Marinco H

英文名：Magnesium hydroxide

产 地：湖南

Cas号：1309-42-8

MDL：MFCD00011104

Beilstein：

EINECS：215-170-3

分子结构：

分子式：MgH2O2； Mg(OH)2

分子量：58.3200

备注：

性状：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

存储：密封保存。

用途：糖的精炼，制药工业。

联合编号：

RISK：

Safety：

Hazard：