... crystalline, slightly water-soluble solid. melamine powder Melamine 99.8% Property: White, crystalline, slightly water-soluble solid ... .Specification:ItemTop GradeFirst GradePurity,%,≥99.899.0Moisture,%,≤0.10.2PH value7.5-9.5Ash,%, ... dissolve test of formaldehydeTurbidity(kaolin) ≤2030Chroma(Hazen)Unit—(Pt-Co)≤2030Packing:25kg/500kg/1000kg per plastic woven bag ...