Calcium sulfite
Calcium sulfite
CAS: 10257-55-3
Molecular Formula: CaO4S
Calcium sulfite - Names and Identifiers
| Name | Calcium sulfite |
| Synonyms | Calciumsulfit Calcium sulfite calcium sulphite CalciumSulfitePowder Sulfurous acid, calcium salt |
| CAS | 10257-55-3 |
| EINECS | 233-596-8 |
| InChI | InChI=1/Ca.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+2;/p-2 |
Calcium sulfite - Physico-chemical Properties
| Molecular Formula | CaO4S |
| Molar Mass | 136.1406 |
| Density | 33.3[at 20℃] |
| Melting Point | 600°C |
| Water Solubility | 0.0043g/100mL (18°C), 0.001g/100mL (100°C) H2O; slightly soluble alcohol; soluble in acid solutions with SO2 evolution [MER06] [CRC10] |
| Appearance | White solid |
| Storage Condition | Room Temprature |
| Use | Used as analytical reagents, also used in textile, paper and sugar industry |
Calcium sulfite - Introduction
Lose crystal water at 100 ℃. Decompose at 650 ℃. Slightly soluble in water. Slowly oxidized to calcium sulfate in the air. Decompose in acid to release sulfur dioxide.
Last Update：2022-10-16 17:11:35
Calcium sulfite - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | calcium sulfite can remove residual chlorine in water, including chemical residual chlorine NH2CL,NHCL2 and NCL3 and free residual chlorine CLO-,HOCL,CL2, etc. Compared with traditional activated carbon, the chlorine removal effect is more efficient, safe, high temperature resistant, and no bacteria breeding, it is widely used in various water to remove residual chlorine in Southeast Asian countries and regions such as Japan, South Korea, Malaysia, and Taiwan. |
| Use | Used as analytical reagent, also used in textile, papermaking and sugar industries, etc. Used as analytical reagent, also used in making calcium and plastic materials, and also used as cellulose products Bleaching dechlorination agent, food preservative, fermentation fungicide, etc. |
Last Update：2024-04-09 19:05:09
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