質(zhì)量標(biāo)準(zhǔn): 氧化銅(粉狀)Cupric oxide powder
GB/T 647-78
項(xiàng)目Item 分析純 化學(xué)純
(AR) (CP)
含量(CuO)Assay,% ≥99.0 98.0
鹽酸不溶物lnsoluble in hydrochloric acid,% ≤0.002 0.05
氯化物(Cl)Chloride,% ≤0.003 0.005
硫化合物(以SO4計(jì))Sulfur compound,% ≤0.01 0.05
氮化合物(N)Nitrogen compound,% ≤0.002 0.005
碳化合物(以CO3計(jì))Nitrogen compound,% ≤0.025 0.1
鐵(Fe)Iron,% ≤0.01 0.04
氧化亞銅(Cu2O)Cuprous oxide,% ≤0.05 0.1
硫化氫不沉淀物(以硫酸鹽計(jì))Substances not
precipitated by hydrogen sulfide,% ≤0.2 0.5
ACS級(jí)
項(xiàng)目名稱Item ACS Grade
含量(CuO)Assay(CuO) ≥99.0%
稀鹽酸不溶物Insoluble in dilute hydrochloric acid ≤0.02%
碳化合物(以C計(jì))Carbon compounds(as C) ≤0.01%
氯化物(Cl)Chloride(Cl) ≤0.005%
氮化合物(以N計(jì))Nitrogen compounds(as N) ≤0.002%
硫酸鹽(SO4)Sulfate ≤0.02%
鈣(Ca)Calcium(Ca) ≤0.01%
鐵(Fe)Iron(Fe) ≤0.05%
鉀(K)Potassium(K) ≤0.02%
鈉(Na)Sodium(Na) ≤0.05%