亚硫酸钡
BARIUM SULFITE
CAS: 7787-39-5
Molecular Formula: BaH4O3S
亚硫酸钡 - Names and Identifiers
| Name | BARIUM SULFITE |
| Synonyms | BARIUM SULFITE barium sulphite Sulfurous acid barium salt |
| CAS | 7787-39-5 |
| EINECS | 232-112-2 |
亚硫酸钡 - Physico-chemical Properties
| Molecular Formula | BaH4O3S |
| Molar Mass | 221.42 |
| Density | 4.440 |
| Melting Point | decomposed by heat [HAW93] |
| Water Solubility | 0.0197g/100g H2O (20°C); 0.0018g/100g (80°C); soluble dilute HCl [KIR78] [HAW93] |
| Appearance | white monoclinic crystals |
| Solubility Product Constant(Ksp) | pKsp: 9.3 |
| Physical and Chemical Properties | Barium sulfite is a colorless hexagonal crystal or powder, which is easily soluble in hydrochloric acid and insoluble in water. It decomposes by heating and decreases in solubility with increasing temperature. Preparation method: It is prepared by the reaction of barium hydroxide, water and sulfur dioxide, or by the reaction of barium hydroxide and potassium bisulfite. |
亚硫酸钡 - Risk and Safety
| UN IDs | 1564 |
| Hazard Class | 6.1(b) |
| Packing Group | III |
亚硫酸钡 - References
| use | barium sulfite can be used in the paper industry and as a chemical analysis reagent. |
Last Update：2024-04-09 20:52:54
