... or powder, tasteless, nontoxic, fine particle. It is amphoteric oxide, soluble in acid, NaOH, NH4CL, not soluble in water ... -05(II)Excellent gradeFirst gradeConforming articleExcellent gradeFirst gradeConforming articleZinc oxide(calculated with dry product ),% ≥99.799.599.499 ... Zn),% ≤nonenone0.008nonenone0.008Lead oxide(alculated with Pb),%≤0.0370.050.14 Manganic oxide(alculated with Mn),%≤0.00010 ...