Specifications

1 barium sulphate precipitated
2 purity: 98% min
3 white powder
4 Cas No: 7727-43-7
5 in 25 kg bags

                   Barium Sulphate Precipitated

No qualitative white powder or slurry. Not dissolve in water, dissolve fuming H2SO4, dissolve boiling HCl a little. Steady chemical character, and with carbon to be made BaSO4.

 

  

 

 

 

Item	Specification
Standard	High-class	First-calss	Qualified-class
Purity (BaSO4)	98% min	97% min	95% min
105°C volatile	0.3% max	0.3% max	0.5% max
Solubility	0.3% max	0.3% max	0.5% max
Iron (Fe)	40ppm max	60ppm max	-
Whiteness	94.0 min	92.0 min	88.0 min
Oil absorption (g/100g)	10-30	10-30	-
PH value (100g/L)	6.5-9	5.5-9.5	5.5-9.5
Fineness:(residue on 0.045mm sieve)	0.2	0.2	0.5

 

 

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