... powder Melamine 99.8% Property: White, crystalline, slightly water-soluble solid.Specification:ItemTop GradeFirst GradePurity,%,≥99.899.0Moisture,%,≤0 ... 2PH value7.5-9.5Ash,%, ≤0.030.05Water dissolve test of formaldehydeTurbidity(kaolin) ≤2030Chroma(Hazen)Unit—(Pt-Co)≤2030Packing ... waterproof agent, rubber adhesive,flame accelerant, efficient cement water reducer, steel diluted agent. melamine 99.8%