Item
Index
I for Pigment
II for abradant
Premium grade
First grade
Salable product
Cr203 %,≥
99.0
98.0
97.0
Moisture%,≤
0.15
0.30
0.50
Water soluble matter%,≤
0.1
0.4
0.70
0.2
0.40
Aq. solution,PH
6--8
5--8
No
Oil absorption,g/100g
15--25
¡Ü20
¡Ü25
Chroma
Ok
Fastness,%
OK
Residue on screen%,45um,≤
0.3
0.5
75um0.5
Remark:The chroma and fastness is optional.