质量标准: 氧化铜(粉状)Cupric oxide powder
GB/T 647-78
项目Item 分析纯 化学纯
(AR) (CP)
含量(CuO)Assay,% ≥99.0 98.0
盐酸不溶物lnsoluble in hydrochloric acid,% ≤0.002 0.05
氯化物(Cl)Chloride,% ≤0.003 0.005
硫化合物(以SO4计)Sulfur compound,% ≤0.01 0.05
氮化合物(N)Nitrogen compound,% ≤0.002 0.005
碳化合物(以CO3计)Nitrogen compound,% ≤0.025 0.1
铁(Fe)Iron,% ≤0.01 0.04
氧化亚铜(Cu2O)Cuprous oxide,% ≤0.05 0.1
硫化氢不沉淀物(以硫酸盐计)Substances not
precipitated by hydrogen sulfide,% ≤0.2 0.5
ACS级
项目名称Item ACS Grade
含量(CuO)Assay(CuO) ≥99.0%
稀盐酸不溶物Insoluble in dilute hydrochloric acid ≤0.02%
碳化合物(以C计)Carbon compounds(as C) ≤0.01%
氯化物(Cl)Chloride(Cl) ≤0.005%
氮化合物(以N计)Nitrogen compounds(as N) ≤0.002%
硫酸盐(SO4)Sulfate ≤0.02%
钙(Ca)Calcium(Ca) ≤0.01%
铁(Fe)Iron(Fe) ≤0.05%
钾(K)Potassium(K) ≤0.02%
钠(Na)Sodium(Na) ≤0.05%