good 1000mesh high purity 98% calcium carbonate

calcium carbonate
1.caco3 filler
2.used in platsic, rubber, paper, coating industry
3.replace other resin to reduce cost...
calcium carbonate

Item
Premium grade
A grade
CaCO3 %

98.0
97.0
PH value (10% suspension)

8.0~10.0
8.0~10.5
Volatile matter (105oC)

0.40
0.70
HCL insoluble matter %

0.10
0.20
Depression volume (ml/g)

2.8
2.6
Fe content %

0.08
0.10
Mn content content %

0.006
0.008
Residue 125μm %

0.005
0.010
Residue 45μm %

0.30
0.40
Whiteness

90.0
90.0
Appearance

White powder
White powder