... or powder, tasteless, nontoxic, fine particle. It is amphoteric oxide, soluble in acid, NaOH, NH4CL, not soluble in water, ... BA01-05(II)Excellent gradeFirst gradeConforming articleExcellent gradeFirst gradeConforming articleZinc oxide(calculated with dry product ),% ≥99.799.599.499. ... Pb),%≤0.0370.050.14 Manganic oxide(alculated with Mn),%≤0.00010.00010.0003 Copper oxide(alculated with Cu),% ≤0.00020. ...