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) | 白色结晶粉末 (white crystalline powder) | 合格(conform) |
含量(assay) | ≥99.5% | 99.8% |
澄清度实验 (appearance of solution) | 应符合规定 (comply with the standard) | 合格(conform) |
水溶液反应 (aqueous reaction) | 应符合规定 (comply with the standard) | 合格(conform) |
化物(bromides) | ≤0.01% | 0.003% |
酸盐(sulphates) | ≤0.002% | 0.0004% |
盐(phosphate) | ≤0.001% | 0.0003% |
(arsenic) | ≤0.00005% | 0.00002% |
碘(iodate) | ≤0.002% | 0.0004% |
钙(calcium) | ≤0.005% | 0.002% |
铁(iron) | ≤0.0002% | 0.00006% |
(potassium) | ≤0.02% | 0.005% |
(magnesium) | ≤0.002% | 0.0004% |
钡(barium) | ≤0.001% | 0.0003% |
重金属(heavy metal) | ≤0.0005% | 0.0002% |
氮化合物(nitrogen compounds) | ≤0.001% | 0.0004% |
干燥失重(loss on drying) | ≤0.5% | 0.2% |
亚铁化物(ferrocyanide) | ≤0.0001% | 0.00003% |
水不溶物(water-insoluble) | ≤0.005% | 0.002% |
结论(conclusion):符合分析纯之规定(the above product complies with ar) |