商品名：硫酸铝

别 名：Aluminum sulfate octadecahydrate

英文名：Aluminum sulfate octadecahydrate

产 地：湖南

Cas号：7784-31-8

MDL：MFCD00149136

Beilstein：

EINECS：233-135-0

分子结构：

分子式：Al2(SO4)3•18H2O

分子量：666.4300

备注：

性状：白色有光泽结晶、颗粒或粉末。味甜。在空气中稳定。86.5℃时失去部分结晶水,250℃失去全部结晶水。当加热时猛烈膨胀并变成海绵状物质。烧到赤热时分解为三氧化硫和氧化铝。当相对湿度约低25%时风化。易溶于水,几乎不溶于乙醇,溶液呈酸性。久沸后有不溶性碱式盐沉淀。相对密度1.62。

质量标准：HG/T3-929-76
项目Item                               分析纯　　　　　 化学纯
　　　　　　　　　　　　　　　　　　　　 (AR)              (CP)
含量[Al₂(SO₄)₃•18H₂O]Assay,%           ≥99.0            98.0
水溶液反应Soluble reaction               合格　　　　　　合格
澄清度试验Clarity                        合格　　　　　　合格
水不溶物lnsoluble matter in water,%    ≤0.02            0.05
氯化物(Cl)Chloride,%                   ≤0.002           0.01
铵盐(NH₄)Ammonium,%                    ≤0.005           0.02
铁(Fe)lron,%                           ≤0.003           0.01
碱金属及碱土金属(以硫酸盐计)Alkali
and earths,%                           ≤0.25            0.5
重金属(以Pb计)Heavy metals,%           ≤0.001           0.002


品级Grade                               药典级  
                        (Ph. Eur., BP, 100-110%, 51.0-59.0% Al2(SO4)3 basis)
含量assay                             100-110%
                                      51.0-59.0% Al2(SO4)3 basis
溶剂残渣residual solvents,            complies
重金属heavy metals (as Pb)            ≤0.002%  
铵ammonium (NH4)                      ≤0.003%  
硫酸氢铵不沉淀物sub.not precip.b.NH4OH(SO4)
                                      ≤0.2%
pH(20 °C, 2%)                        2.5-4.0
氯chloride (Cl-):                     ≤50 ppm
As:                                   ≤3 ppm
Fe:                                   ≤50 ppm
溶液外观appearance of solution        complies


项目名称Item                                           ACS Grade
含量[以已标记结晶水记]Al₂(SO₄)₃•18H₂O]Assay              98.0-102.0%
水不溶物Insoluble matter                                 ≤0.01%
氯化物(Cl)Chloride(Cl)                                   ≤0.005%
钙(Ca)Calcium(Ca)                                        ≤0.01%
镁(Mg)Magnesium(Mg)                                      ≤0.002%
钾(K)Potassium(K)                                        ≤0.005%
钠(Na)Sodium(Na)                                         ≤0.02%
重金属(以Pb计)Heavy metals(as Pb)                        ≤0.001%
铁(Fe)Iron(Fe)                                           ≤0.002%



99.99% metals basis:


外观Appearance                          White Powder
X-射线衍射分析X-Ray Diffraction         Conforms to Structure
纯度Purity                              ≥99.99% Based on Trace Metals Impurities of ICP
ICP Major Analysis                      Confirms Aluminum component
痕量金属分析total metallic impurities   ≤200ppm by ICP Atomic emission

存储：密封阴凉干燥保存。

用途：用作分析试剂。媒染剂。净水剂。油脂脱色剂及制造灭火机。

联合编号：

RISK：

Safety：

Hazard：