碳酸钙

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,%     ≤

0 

Whiteness(R457),%      ≥

99

Absorption oil Number (DOP), ml/100g\  ≤

45

Appearance

 WHITE POWDER