外 观:白色晶体 含 量:≥99.5% 水 份:≤0.1% 铜(Cu2+)500ppb;铁(Fe2+)500ppb;镍(Ni2+)500ppb;钾(K+)500ppb; 钠(Na+)500ppb;钙(Ca2+)500PPb;铬(Cr3+)500ppb 包装:25KG纸板桶内衬塑料袋。