... ; Purity: 99.95% melamine manufacturer --nantong zixin industry co.,Ltd1.melamine quality specification: top-quality first -class melamine content ... turbidity degree 20max 30max2. physical /chemcial data : (1) apperance : fine ,white crystalline powder ,wontoxic ,odorless (2) boiling point : >250 ... 4,6-Triamine-1,3,5-triazine)is a fine, nontoxictic and odorless crystalline powder used in the ...