检 验 项 目 T e s t I t e m |
检 验 标 准 T e s t S t a n d a r d |
检 验 结 果 T e s t r e s u l t |
性状 (Characters) |
白色结晶性粉末 (White crystalline powder) |
合格 (Conform) |
含量 (Assay) |
99.5% |
99.8% |
PH (Ph) |
4.4~6.0 |
合格 (Conform) |
澄清度实验 (Appearance of solution) |
应符合规定 (Comply with the standard) |
合格 (Conform) |
水不溶物 (Water-insoluble) |
0.01% |
0.005% |
氯化物 (Chloride) |
0.0005% |
0.0003% |
总氮量 (Total nitrogen) |
0.001% |
0.0004% |
*** (Arsenic) |
0.00005% |
0.00002% |
锰 (Manganese) |
0.0003% |
0.00012% |
铁 (Iron) |
0.0005% |
0.0002% |
铜 (Cuprum) |
0.001% |
0.0003% |
镉 (Cadmium) |
0.0005% |
0.0002% |
铅 (Lead) |
0.001% |
0.001% |
硫化铵不沉淀物 (Hydrogen sulfide not precipitate) |
0.05% |
0.03% |
结论(Conclusion):符合分析纯之规定(The above product complies with AR) |