Melamine powder Appearance: white crystal; Chemical Formula:C3H6N6; Molecular Weight: 126.12; Purity:99.8% Properties:white cystal powder,it can ... GB/T9567-1997 Item IndexSuperior-gradeAppearanceWhite powder without any foreign impurityPurity,%,≥99.8Moisture,%,≤0.1Ash content,%,≤0. ... value7.5-9.5 We supply melamine powder for Melamine formaldehyde glue manufacturer, Melamine Ware etc Melamine 99.8%