质量标准: | 氧化铜/纳米氧化铜,1317-38-0,Cupric oxide powder 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 氧化铜/纳米氧化铜,1317-38-0,Cupric oxide powder 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% |