... tanning agent,etc.Packing and transportation:packed with plastic bag coated with plastic woven bag,25kg or 40kg per ... standard:GB/T9567-1997 Item IndexSuperior-gradeAppearanceWhite powder without any foreign impurityPurity,%,≥99.8Moisture,%,≤0.1Ash content,%,≤0. ... kaolin turbidity),≤20Colority(platium-cobalt)number20PH value7.5-9.5 We supply 1,3,5-triazine-2,4,6-triaminemelamine powder for ...