... powder 99.9 , 99.8, 98. 2.Good quality, large capacity, fast shipment 3.Packing: 25kg, 500kg and 1000kg PP bags 4. Melamine powder 99.9 , 99 ... .8, 98. 1. Usage: Melamine powder is mainly used for manufacturing melaminoformal ... Item Super Grade First GradeAppearanceMelamine powderPurity %≥99.999.8Water %≤0.10.12PH7.5~9.5Ash %≤0.030.05Turbidity ≤2030Chromaticity ...