主含量(%)：50.0
原料纯度﹥99.99．杂质含量合格

氨水溶解试验                           无肉眼可见不溶物
杂质含量（%）:
Ag                                                  ≤0.002
Au                                                  ≤0.005
Pt                                                   ≤0.01
Rh                                                  ≤0.01
Ir                                                    ≤0.01
Fe                                                  ≤0.005
Al                                                   ≤0.005
Pb                                                  ≤0.005
Ni                                                   ≤0.005
Cu                                     ≤0.001
Si                                     ≤0.005
Sn                                     ≤0.005