Product:barium sulphate precipitate
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ITEMS
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GB/T2899-1996
Fine Grade
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INDEX
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Fine Grade
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First Grade
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Powder Coating Grade
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Emulsion Grade
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Modified Super-fine Grade
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Refined Grade
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BaSO4(as per dry),%,≥
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98.0
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98.0
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98.0
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98.5
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97.0
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96.0
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98.0
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Volatility at 105℃,%≤
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0.30
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0.15
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0.20
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0.10
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0.10
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0.20
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0.15
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Solubles in water ,%,≤
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0.30
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0.20
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0.25
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0.18
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0.30
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0.50
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0.20
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Fe,%,≤
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0.004
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0.003
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0.004
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0.002
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0.002
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0.003
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0.003
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Whiteness,%,≥
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94
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96
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95
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96
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96
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96
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96
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Oil absorption, g/100g
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15-25
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15.5-20
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15-20
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15.5-18
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15.5-20
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20-28
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15.5-20
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PH value (100g/L suspension)
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6.5-9.0
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6.5-9.0
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6.5-9.0
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6.5-9.0
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6.5-9.0
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6.5-9.0
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6.5-9.0
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Residue on sieve of 45um, % ≤
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0.20
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0.10
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0.20
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0.06
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0.06
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0.02
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0.01
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Particle Size distribution
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≤10um, %,≥
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80.0
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95.0
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90.0
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98.0
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98.0
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98.0
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99.8
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≤5um, %,≥
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60.0
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85.0
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80.0
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90.0
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90.0
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95.0
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98.0
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≤2um, %,≥
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25.0
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60.0
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60.0
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60.0
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60.0
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70.0
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75.0
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*The particle size distribution is tested by the HELOSIBF-MAGIC type laser particle size analysis instrument of the German sympatec company.
- PACKING: 25kg/50kg/500kg/1000kg net each in P.P woven bag lined with P.E bag，or in terms of customers' requirements.
- PROPERTY: Colorless prismatic crystal shown as amorphous white powder; hardly soluble in water, ethanol and acid; easily forming lumps in dry air.
USES: Mainly used for paint, printing-ink, textile, pigment and pottery industries, also used as coatings on the surface of rubber, plastics, photo-paper etc.
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