| CAS No.: | 513-77-9 |
|---|---|
| Formula: | Baco3 |
| EINECS: | 208-167-3 |
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Barium carbonate, appearing as a white crystal, has low solubility in water, producing a weakly alkaline solution when it dissolves slightly. It decomposes into carbon dioxide and barium salts under acidic conditions, with a melting point of approximately 1740 °C.
It is extensively utilized in the electronics industry for manufacturing PTC thermal components, chip components, and semiconductor capacitors, and is vital for the creation of optical and picture tube glass, barium magnetic materials, and capacitors. Its applications also include steel carburizing, metal surface treatments, and the production of barium salts, ceramics, enamels, pigments, coatings, rubber, and welding rods.
It also functions as a water purifier and rodenticide, necessitating careful management to prevent the creation of toxic barium compounds that can lead to poisoning with symptoms such as nausea, vomiting, arrhythmia, and respiratory paralysis.
| Heavy barium carbonate | ||
| Index | Standard | Result |
| Appearance | White | White Powder |
| Content(in BaCO3) | ≥99.00 | 99.55 |
| Moisture(%) | ≤0.30 | 0.04 |
| RI | ≤0.1 | 0.039 |
| Sulfide (in S2-) | ≤0.1 | 0.047 |
| Total Sulfur (in SO42-) | ≤0.25 | 0.16 |
| Tap Density g/mL | 1.3-1.9 | 1.64 |
| Fe | ≤0.002 | 0.00063 |
| Grain Size D50 (JL-1177) μm | - | 14.86 |
| Light barium carbonate | ||
| Index | Standard | Result |
| Appearance | White | White Powder |
| Content(in BaCO3) | ≥99.00 | 99.62 |
| Moisture(%) | ≤0.30 | 0.047 |
| RI | ≤0.1 | 0.04 |
| Sulfide (in S2-) | ≤0.1 | 0.05 |
| Total Sulfur (in SO42-) | ≤0.30 | 0.17 |
| Tap Density g/mL | - | 1.1 |
| Fineness (44μm) Sieve residue(%) | ≤1.0 | 0.1 |
| Fe | ≤0.002 | 0.00058 |
| Grain Size D50 (JL-1177) μm | - | 3.13 |
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