质量标准
项目Item 分析纯
(AR)
含量(Bi2O3)Assay,% ≥ 99.5
硝酸不溶物lnsoluble in nitric acid,% ≤ 0.005
氯化物(Cl)Chloride,% ≤ 0.005
硫酸盐(SO4)Sulfate,% ≤ 0.01
氨(NH4)Ammonia,% ≤ 0.003
砷(As)Arsenic,% ≤ 0.0006
铜(Cu))Copper,% ≤ 0.005
铁(Fe)Iron,% ≤ 0.003
银(Ag)Silver 合格
铅(Pb)Lead,% ≤ 0.05
碱金属及碱土金属(硫酸盐) ≤ 0.25
Alkali and earths,%