- 铜粉 分子式: Cu 分子量: 63.54 含量不少于………………………………………………99.8% 杂质最高含量(指标以%计) 铁(Fe)……………………………………………………0.015% 铅(Pb)……………………………………………………0.03% 水份………………………………………………………0.05% 砷(As)……………………………………………………0.005% 锑(Sb)……………………………………………………0.001% 铋(Bi)……………………………………………………0.002% 镍(Ni)……………………………………………………0.003% 锡(Sn)……………………………………………………0.004% 锌(Zn)……………………………………………………0.004% 硫酸盐(SO4)………………………………………………0.01% 氯化物(Cl)………………………………………………0.004% 硝酸处理后灼烧残渣……………………………………0.05%