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Barium sulfate -5AA
Molecular formula: BaSO4
CAS No.: 7727-43-7
H.S. Code: 2833270000
EINECS No: 231-784-4
Description:
Our precipitated barium sulfate is super-fine powder, made from high quality barite, which is white powder with specific gravity 4.50(15℃). It can be soluble in hot concentrated sulfuric acid, but cannot be soluble in water/ organic solvent / acid. The end products have good dispersibility, high whiteness, nice covering power, stable chemical properties.
Description
| Parameters Item | Internal control standard | Test Methods and Instruments |
| Barium sulfate (BaSO₄) | 97.0±0.5% | Gravimetric Method |
| Water-soluble salt | ≤0.20 % | Thermal Extraction Method |
| Moisture content | ≤0.20 % | Gravimetric Method |
| Loss on Scorch | ≤0.50 % | Thermal Extraction Method |
| Blu-ray whiteness | 94-95% | Whiteness Meter |
| PH Value | 7-9 | Acidometer Method |
| Average particle size D50 | 1.60±0.1(um) | Malvern Laser Diffraction Method |
| Particle size D97 | 4.2±0.2(um) | Malvern Laser Diffraction Method |
| Specific gravity | 4.4±0.2 g/cm³ | Gravimetric Method |
| Loose Density | 1.0±0.2g/m³ | Scale Calculation Method |
| Oil absorption | 12.0±1.0g /100g | Gravimetric Method |
| 325 mesh pass rate | 100% | Wet sieve Method |
