Physical property

Chemical property

S.G (g/cbm)

4.35

BaSO4

≥64%

Mean particle diameter (mm)

0.8-1.0

105^o volatilization

≤0.035%

Oil absorption (g oil/100g) (ASTM D.281)

13-16

Water soluble

≤0.15%

Whiteness

95-97

Fe2O3

≤0.01%

PH Value

7-8

Heavy metals Pb

≤0.002%

45u seive

0