melamine

Property: White, crystalline, slightly water-soluble solid.
Specification:
Item Top Grade First Grade
Purity,%,≥ 99.8 99.0
Moisture,%,≤ 0.1 0.2
PH value 7.5-9.5
Ash,%, ≤ 0.03 0.05
Water dissolve test of formaldehydeTurbidity(kaolin) ≤ 20 30
Chroma(Hazen)Unit—(Pt-Co)≤ 20 30