disodium sulfite
SODIUM SULFITE HEPTAHYDRATE
CAS: 10102-15-5
Molecular Formula: H14Na2O10S
disodium sulfite - Names and Identifiers
| Name | SODIUM SULFITE HEPTAHYDRATE |
| Synonyms | disodium sulfite SODIUM SULFITE 7 H2O SODIUM SULPHITE 7H2O SODIUM SULFITE HEPTA Sodiumsulfite7-hydrate SODIUMSULPHITEHEPTAHYDRATE SODIUM SULFITE HEPTAHYDRATE sulfurousacid,sodiumsalt,heptahydrate Sulfurous acid, disodium salt, heptahydrate Sulfurous acid,disodium salt, heptahydrate (9CI) |
| CAS | 10102-15-5 |
| EINECS | 231-548-0 |
| InChI | InChI=1/Na.H2O3S.7H2O/c;1-4(2)3;;;;;;;/h;(H2,1,2,3);7*1H2/q+1;;;;;;;;/p-2 |
disodium sulfite - Physico-chemical Properties
| Molecular Formula | H14Na2O10S |
| Molar Mass | 252.15 |
| Density | 1.560 |
| Water Solubility | soluble 1.6 parts H2O, ~30 parts glycerol; slightly soluble alcohol [MER06] |
| Solubility | Freely soluble in water, very slightly soluble in ethanol (96 per cent). |
| Appearance | white monoclinic crystals |
| Storage Condition | 0-6°C |
| Physical and Chemical Properties | Storage Conditions: 0-6 ℃ |
disodium sulfite - Reference Information
| Use | used as reducing agent, preservative, developing and protecting agent, and used in the preparation of sodium thiosulfate and other |
| production method | 160g of Na2CO3 · 10H2O was dissolved in ml of water, and the solution was filtered and divided into two portions. One portion was heated to 40 ° C. On a water bath and saturated with SO2 under negative pressure to form a sodium bisulfite solution. Another portion of sodium carbonate solution was added thereto, and the crystals were allowed to stand. The crystals were filtered and dried at room temperature to obtain 110g of sodium sulfite heptahydrate. Care should be taken to avoid exposure to air during crystallization and filtration operations. |
Last Update：2024-04-10 22:29:15
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