|
CaCO3 content (Dry basis), % ≥
|
98.5
|
|
PH(10% Soliquit)
|
8-10
|
|
Insoluble substance in hydrochloric acid, % ≤
|
0.2
|
|
Moisture content, % ≤
|
0.015
|
|
Average Grain(D50),μm ≤
|
1.5-1.8
|
|
Fe,% ≤
|
0.08
|
|
Mn,% ≤
|
0．006
|
|
Residues： 325μm,% ≤
125μm,% ≤
|
0
0
|
|
Whiteness(R457),% ≥
|
99
|
|
Absorption oil Number (DOP), ml/100g\ ≤
|
45
|
|
Appearance
|
WHITE POWDER
|
