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Barium sulfate CAS 7727-43-7, it is produced in advanced production techniques, specially modified, excellent performance, high whiteness and even and narrow distribution of particle size, good dispersibility, super-fine; can absorb X-ray, and endow the materials with high density and surface finish, therefore widely used in paints, printing ink, coatings, plastics, rubber, chips, friction plate, ceramics, glass, electronics, cosmetics, pharmacy and food etc.
Physical properties
Appearance White powder
Density,15℃,g/cm3 4.25--4.5
Boiling point,℃ 330
Melting point,℃ 1580
Solubility Almost insoluble in water, dilute acid and alcohol
Specification
Items Industry grade First grade Super grade
Purity (by dry basis) 98%min 98%min 98.5%min
Whiteness 94%min 98%min 98.5%min
Volatility at 105 degree 0.2% max 0.2% max 0.15% max
Ph value 6.5-9 6.5-9 6.5-9
HCL Insoluble Matter 97.5% min 98% min 99% min
Water soluble matter 0.2% max 0.2% max 0.15% max
Iron (on Fe basis) 0.01% max 0.004% max 0.0015% max
Moisture 0.15% max 0.15% max 0.1% max
325 mesh residue(45um) 0.01% max 0.01% max 0.0015% max
Particle size distribution
≤5um 100% min 100% min 100%≤3um 60% min 70% min 100%
≤1um 30% min 35% min 95%
D50 ≤2 um ≤1.5 um ≤ 0.72 um
D97 ≤5 um ≤2.5 um ≤1.20 um
Oil absorption 14-18% 14-18% 12-17%
Specific Gravity 4.3g/cm3 4.3g/cm3 4.3g/cm3
Application
It can be use absorb X-ray, and endow the materials with high density and surface finish, therefore widely used in paints, printing ink, coatings, plastics, rubber, chips, friction plate, ceramics, glass, electronics, cosmetics, pharmacy and food etc.
Package
25kg/bag or 1000kg/bag, 20mt per 20GP container
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