SpecificationProducts of our factory implement national standard GB3676-92
Index
Unit
Prime
First quality
Nondefective
Purity (caltulated according to content of maleic anhydride)
%
99.5
99.0
98.5
Fusing chroma
APHA
25
50
100
Freezing point
C
52.4
52
51.5
Ash content
PPM
Fe content
5