- Calcium sulfite
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- $1.00 / 1PCS
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2026-03-20
- CAS:10257-55-3
- Min. Order: 1PCS
- Purity: 99%
- Supply Ability: 10 mt
- Calcium sulfite
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- $19.60 / 1KG
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2025-05-26
- CAS:10257-55-3
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 5000kg
- Calcium sulfite
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- $10.00 / 1kg
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2025-04-15
- CAS:10257-55-3
- Min. Order: 1kg
- Purity: 99%
- Supply Ability: 20ton
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| Product Name: | Calcium sulfite | | Synonyms: | Sulfurous acid, calcium salt;calcium sulphite;sulfurous acid, calcium salt (1:1);Calciumsulfit;CalciumSulfitePowder | | CAS: | 10257-55-3 | | MF: | CaH4O3S | | MW: | 124.17 | | EINECS: | 233-596-8 | | Product Categories: | | | Mol File: | 10257-55-3.mol |  |
| | Calcium sulfite Chemical Properties |
| Melting point | 600°C | | density | 33.3[at 20℃] | | solubility | slightly soluble in ethanol; soluble in acid solutions | | form | solid (rough estimate) | | color | white | | 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] | | EPA Substance Registry System | Sulfurous acid, calcium salt (1:1) (10257-55-3) |
| | Calcium sulfite Usage And Synthesis |
| Application | Calcium sulfite can remove residual chlorine from water, including combined residual chlorine (NH2Cl, NHCl2, and NCl3) and free residual chlorine (ClO-, HOCl, and Cl2). Compared with traditional activated carbon, it has a more efficient chlorine removal effect, is safer, more resistant to high temperatures, and does not breed bacteria. It is widely used in various water treatments for residual chlorine removal in Southeast Asian countries and regions such as Japan, South Korea, Malaysia, and Taiwan. | | Chemical Properties | hexagonal; white crystal(s) or powder(s); slowly oxidizes in air to CaSO4; used in brewing, as a disinfectant in sugar manufacturing [HAW93] [MER06] [CRC10] |
| | Calcium sulfite Preparation Products And Raw materials |
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