無色單斜結(jié)晶。無氣味。加熱到40度以上開始失水，到80度以上成為一水合物，但繼續(xù)加熱不會變灰無水物。易溶于水，幾乎不溶于醇和乙酸乙酯。密度： 3.09

Q（HG）SJ　682-95
項目Item　　                                      分析純　　  化學(xué)純
                                                  （AR）      （CP）
含量（3CdSO₄·8H₂O）Assay,%                         ≥99.0       99.0
pH（50g/L溶液，25℃）                               ≤4.0        4.0
澄清度試驗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
總氮量（N）Total nitrogen,%                         ≤0.002      0.006
鋁（Al）Aluminum,%                                  ≤0.005      0.01
鐵（Fe）Iron,%                                      ≤0.0002     0.0006
銅（Cu）Copper,%                                    ≤0.001      0.002
鋅（Zn）Zinc,%                                      ≤0.002      0.005
砷（As）Arsenic,%                                   ≤0.00005    0.0001
鉛（Pb）Lead,%                                      ≤0.1        0.02
硫化銨不沉淀物（以硫酸鹽計）Substances not
precipitated by ammonium sulfide,%                ≤0.1        0.2

ACS級
項目名稱Item                                       ACS Grade
含量Assay                                         79.5-81.0%
水不溶物 Insoluble matter                         ≤0.005%
硝酸鹽及亞硝酸鹽Nitrate and nitrite（as （NO₃）      ≤0.003%
硫酸鹽（SO₄）Sulfate                                ≤0.005%
銨（NH4）Ammonium                                   ≤0.005%
鈣（Ca）Calcium（Ca）                                 ≤0.005%
銅（Cu）Copper（Cu）                                  ≤5ppm
鉛（Pb）Lead（Pb）                                    ≤0.005%
鉀（K）Potassium（K）                                 ≤0.02%
鈉（Na）Sodium（Na）                                  ≤0.05%
鋅（Zn）Zinc（Zn）                                    ≤0.05%
鐵（Fe）Iron（Fe）                                    ≤5ppm



99.99% metals basis：


外觀Appearance                          白色結(jié)晶粉末或塊狀物
純度Purity                              ≥99.99% Based On Trace Metals Analysis of ICP
鎘Cd                                    ≥43.0 % （Complexometric EDTA）
ICP:                                    Confirms Cadmium Component Confirmed
痕量金屬分析Trace Metal Analysis        ≤200ppm by ICP Atomic emission

鎘、銅、鎳的電解淀積，制造標(biāo)準鎘元素，馬許氏試砷法的觸媒，測定硫化氫，檢定反丁烯二酸，電鍍鎘。