商品名:硫酸镉
别 名:硫酸镉(3:8)水合物;硫酸镉,八水;硫酸镉8/3水合物;八水合硫酸镉;结晶硫酸镉;硫酸镉8水合物;硫酸镉水合物;硫酸镉八水合物, ACS, 98.0-102.0%
英文名:Cadmium Sulfate,8/3-Hydrate
产 地:湖南
Cas号:7790-84-3
分子结构:
分子式:CdSO4•8/3H2O
分子量:256.5200
备注:
性状:无色单斜结晶。无气味。加热到40度以上开始失水,到80度以上成为一水合物,但继续加热不会变灰无水物。易溶于水,几乎不溶于醇和乙酸乙酯和乙醚。密度: 3.09
质量标准:(HG)SJ 682-95 项目Item 分析纯 化学纯 (AR) (CP)含量(3CdSO4•8H2O)Assay,% ≥99.0 99.0 pH(50g/L溶液,25℃) ≤4.0 4.0 澄清度试验Clarity 合格 合格水不溶物Insoluble matter in water,% ≤0.003 0.005 氯化物(Cl)Chloride,% ≤0.001 0.003 总氮量(N)Total nitrogen,% ≤0.002 0.006 铝(Al)Aluminum,% ≤0.005 0.01 铁(Fe)Iron,% ≤0.0002 0.0006 铜(Cu)Copper,% ≤0.001 0.002 锌(Zn)Zinc,% ≤0.002 0.005 砷(As)Arsenic,% ≤0.00005 0.0001 铅(Pb)Lead,% ≤0.1 0.02 硫化铵不沉淀物(以硫酸盐计)Substances not precipitated by ammonium sulfide,% ≤0.1 0.2 ACS级项目名称Item ACS Grade 含量Assay 79.5-81.0% 水不溶物 Insoluble matter ≤0.005% 硝酸盐及亚硝酸盐Nitrate and nitrite(as (NO3) ≤0.003% 硫酸盐(SO4)Sulfate ≤0.005% 铵(NH4)Ammonium ≤0.005% 钙(Ca)Calcium(Ca) ≤0.005% 铜(Cu)Copper(Cu) ≤5ppm 铅(Pb)Lead(Pb) ≤0.005% 钾(K)Potassium(K) ≤0.02% 钠(Na)Sodium(Na) ≤0.05% 锌(Zn)Zinc(Zn) ≤0.05% 铁(Fe)Iron(Fe) ≤5ppm 99.99% metals basis: 外观Appearance 白色结晶粉末或块状物 纯度Purity ≥99.99% Based On Trace Metals Analysis of ICP 镉Cd ≥43.0 % (Complexometric EDTA) ICP: Confirms Cadmium Component Confirmed 痕量金属分析Trace Metal Analysis ≤200ppm by ICP Atomic emission
存储:密封阴凉干燥保存。
用途:镉、铜、镍的电解淀积,制造标准镉元素,马许氏试砷法的触媒,测定硫化氢,检定反丁烯二酸,电镀镉。
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