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项目Item 分析纯 化学纯 (AR) (CP) 灼烧失重Ignition loss,% ≤ 1.0 1.0 硝酸不溶物Insolubhe in nitric acid,% ≤ 0.005 0.01 氯化物(Cl)Chloride,% ≤ 0.005 0.01 硫酸盐(SO4)Sulfate,% ≤ 0.01 0.05 总氮量(N)Total nitrogen,% ≤ 0.003 0.05 铁(Fe)Iron,% ≤ 0.002 0.005 砷(As)Arsenic,% ≤ 0.001 0.005 铜(Cu)Copper,% 合格 合格 碱金属及碱土金属(以硫酸盐计)Alkali and alkali erath metals,% ≤ 0.05 0.1
α-Bi2O3:
品级grade 高纯4N级 Bi2O3 ≥99.99% Ni ≤0.0001% Fe ≤0.0003% Ag ≤0.00005% Cu ≤0.0002% Mg ≤0.0005% Pb ≤0.0002% Sb ≤0.0001% Zn ≤0.0005% Cr ≤0.0001% Cd ≤0.0001% 物相 α-Bi2O3 外观Appearance 球形淡黄色 中粒径 4~6μm
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