barium sulfate/nano barium sulfate/ultrafine barium sulfate
- CAS number
- 7727-43-7
- Molecular weight
- Molecular formula / chemical symbol
- BaSO4
Description
White heavy fine powderUSES
Mainly in the paint, printing ink, advertising pigments, cosmetics, PVC resin as filling agent and weighting agent. Paper industry for copper plate test paper production and magnetic soil mixed made into coating, satin paper production and dye solution adjustment made serous as coating agent. Medical used for X-ray or taken a little contrast the digestive system. Electrolytic as cathode plate expansion agent. In addition, also used in ceramic, enamel, spices, photographic paper, artificial ivory, copper smelting fusing agent and other production
Report
Inspection test report against
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Items
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Gauge case |
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precipitated barium sulphate（GB/T2899—1996） |
（HG/T2774—1996） |
Nano barium sulfate |
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high-class product |
top quality goods |
qualified product |
top quality goods |
qualifid product |
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Barium sulfate (BaSO4) content (dry basis meter), or % |
98.0 |
97.0 |
95.0 |
97.0 |
95.0 |
98.0 |
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105 ° C volatile, % ≤ |
0.30 |
0.30 |
0.50 |
0.30 |
0.50 |
0.30 |
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Water content, % ≤ |
0.30 |
0.30 |
0.50 |
0.30 |
0.50 |
0.30 |
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Determine if flexion-extension (Fe) radiographs iron content, % ≤ |
0.004 |
0.006 |
— |
0.006 |
— |
0.003 |
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Whiteness, % ≥ |
94 |
92 |
88 |
92 |
88 |
94 |
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Oil absorption, g / 100 g |
15~30 |
10~30 |
— |
20~35 |
20~35 |
15~30 |
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PH value (100 g/L suspension) |
6.5~9.0 |
5.5~9.5 |
5.5~9.5 |
5.5~9.0 |
5.5~9.0 |
5.5~9.0 |
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Fineness (45 μ m test sieve sieve residue), % or less |
0.2 |
0.2 |
0.5 |
0.01 |
0.02 |
— |
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