5 years producing experience, 5 tons/month, export to Indonesia, Taiwan and South America, Europe, etc ITEM TESTEDSTANDARDRESULTSAppearanceWhite or almost white crystalline powderAlmost white crystalline powderTestsRelated substancesNot more than 0.5%0.35%Residue on ignitionNot more than 0.5%0.36%Heavy metalsTo match with Reference StandardCompliesPurity (Tested by HPLC)It contains not less than ...