Specification:

Appearance: white powder

BaSO4 Content: 98% min

volatile matter（105。C） 0.3% max

Water soluble: 0.3% max

Oil Absorption: 10~30 g/100g

residue on 45μm sieve: 0.2% max

PH Value: 6.5~9.0

Iron (Fe): 0.0010% max

Colorimetric measure L*	Approx.99
Electrical conductivity	≦200 uS/cm