• 硫酸铝,十八水 [7784-31-8]

  • 英文名:Aluminum sulfate octadecahydrate
  • 别名:Trade termforalum
  • CAS号:7784-31-8 分子式:AL2(SO4)3?18H2O 分子量:666.41
P129953-500g 硫酸铝,十八水 [7784-31-8] 99% metals basis 500g 60.00 促销价:45.00
P129951-500g 硫酸铝,十八水 [7784-31-8] 99.99% metals basis 500g 1185.00
P129950-100g 硫酸铝,十八水 [7784-31-8] 99.99% metals basis 100g 282.00
P129959-25g 硫酸铝,十八水 [7784-31-8] 99.99% metals basis 25g 86.00
P129952-500g 硫酸铝,十八水 [7784-31-8] ACS,98.0-102.0% 500g 76.00
订货编号 商品名称 规格 包装 单价 促销价 会员价 数量
P129953-500g 硫酸铝,十八水 [7784-31-8] 99% metals basis 500g 60.00 45.00 登录可见
P129953-500g 硫酸铝,十八水 [7784-31-8] 99% metals basis 500g 60.00 促销价:45.00
P129951-500g 硫酸铝,十八水 [7784-31-8] 99.99% metals basis 500g 1185.00 1185.00 登录可见
P129951-500g 硫酸铝,十八水 [7784-31-8] 99.99% metals basis 500g 1185.00
P129950-100g 硫酸铝,十八水 [7784-31-8] 99.99% metals basis 100g 282.00 282.00 登录可见
P129950-100g 硫酸铝,十八水 [7784-31-8] 99.99% metals basis 100g 282.00
P129959-25g 硫酸铝,十八水 [7784-31-8] 99.99% metals basis 25g 86.00 86.00 登录可见
P129959-25g 硫酸铝,十八水 [7784-31-8] 99.99% metals basis 25g 86.00
P129952-500g 硫酸铝,十八水 [7784-31-8] ACS,98.0-102.0% 500g 76.00 76.00 登录可见
P129952-500g 硫酸铝,十八水 [7784-31-8] ACS,98.0-102.0% 500g 76.00
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  •  商品名称
  •  规格
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化学性质

白色无定形结晶或颗粒和粉未,有甜味。溶于水,不溶于醇。逐渐加热熔解,250℃失去水分,加热时分解。在空气中稳定,当相对湿度约20%时风化。比重为1.69。在空气中长期存放易吸结块,脱水温度为86.5℃,能溶于水、酸和碱,不溶于醇,水溶液呈酸性,具有酸而涩的味道。加热到530℃时开始分解,860℃分解结束,分解最终产物为r-Al2O3,、高纯硫酸铝在水解过程中,首先生成中间产物碱式盐,然后生成氢氧化铝。 熔点:86℃

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

  

危险性质

  

用途及存储

用作制白色鞣革、纸上浆、媒染剂、净水剂、防水剂、澄清剂、石油除臭剂、沉淀剂等。

  密封干燥保存。