Specifications of Industrial Grade White Melamine Powder 99.8%min:
Melamine Powder
a.Purity:melamine 99.8%min
b.Appearance:white
c.High quality and delivery fast
d.Free sample,factory price
Descriptions of Industrial Grade White Melamine Powder 99.8%min:
Specification : the standard of GB/T9567-1997
Melamine White Crystalline Powder
Specification
Typical Test Result
Purity %≥
99.8
99.9
Moisture %≤
0.10
0.02
Ash %≤
0.03
0.01
PH
7.5-9.5
8.7
Test of formaldehyde solubility ≤
20
2
China clay turbidity degree ≤
20
10
Physical and Chemical Characteristics:
Physical properties:
Appearance: White, innoxious, flavorless crystalline powder.
Solubility: Soluble in methanol, formaldehyde, acetic acid, hot ethylene glycol, glycerol, pyridine; Slightly
soluble in water, ethanol; Do not dissolve in ether, benzene and carbon tetrachloride. Weakly alkaline aqueous solution.
Chemical properties:
Melamine presents alkalescence, can react with various acidums to generate melamine salt. In strong acid or strong
alkali liquor, melamine will hydrolyze amido group will be slowly replaced by hydroxyl, thus generate
ammeline, Cyanuric Acid and Ammelide. It can react with aldehydes to produce addition compounds.
Among them, the reaction of melamine and formalin is the most important part.
