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Specifications
barium sulfate
CAS No. 7727-43-7
Appearance:white powder
Application:can absorb X-ray, and endow the materials
1.Appearance : White oblique side crystallization or white amorphous powder.
2.Other Features:Wite color,tasteless, nontoxic. Soluble in hot concentrated sulfuric acid, do not dissolve in water, ethanol and acid. When dry caking. Industrial precipitation of barium sulfate itself not toxic, but if the content of soluble compounds of barium can lead poisoning.
3.Use:
1. As a weighting agent for drilling fluids in oil and gas exploration.
2. Used in the car, electronics, TV screen, rubber, and glass ceramics and paint industry.
3. As surface smear for photographic paper and calendered paper; as sizing agent for textile industry.
4. As clarifying agent for glass products.
5. Radiation shielding and medical applications;
| Indexes |
Excellent |
First grade |
Qualified |
|
| pre-cipitated barium sulfate content % ≥ |
98.0 |
97.0 |
95.0 |
| Volatile matter(105°C) % ≤ |
0.3 |
0.3 |
0.5 |
| Water-insoluble content%≤ |
0.3 |
0.3 |
0.5 |
| Fe content %≤ |
0.004 |
0.006 |
- |
| PH(100g/Lsuspension) |
6.5-9.0 |
5.5-9.0 |
5.5-9.5 |
| whiteness |
94 |
92 |
88 |
| 5um%≥ |
60 |
65 |
70 |
| 2um%≥ |
25 |
40 |
50 |
Powder size distribution 10um % ≥ |
80 |
85 |
90 |
Fineness (43umresidue on sieve) %≤ |
0.1 |
0.2 |
0.5 |
oil absorption g/100g |
15-30 |
10-3010 |
|
|
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