Main Properties of Physical and Chemical

Specific Gravity

4.35 g/cc min

Ba(Sr)SO4

98% min

Mean Particle Diameter(μm)

≈4

SiO2

1.0% max

Oil Absorption

7~11

Fe2O3

0.1% max

Brightness (Hunter L)

95 min

Al2O3

0.1% max

Ph Value

6~9

CaO

0.30% max

Moisture

0.1% max

Hg

1ppm max

Loss on Ignition

1% max

Cd

3ppm max