Magnesium sulfite
| |||
| Names | |||
|---|---|---|---|
| IUPAC name
Magnesium sulfite | |||
| Other names
Magnesium sulphite | |||
| Identifiers | |||
| 7757-88-2 | |||
| ChemSpider | 2282946 | ||
| ECHA InfoCard | 100.028.932 | ||
| EC Number | 231-825-6 | ||
| PubChem | 3014583 | ||
| Properties | |||
| MgSO 3 (anhydrous); MgSO 3·6H 2O | |||
| Molar mass | 104.368200 g/mol (anhydrous) 212.4599 g/mol (hexahydrate) | ||
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |||
| Infobox references | |||
Magnesium sulfite is the magnesium salt of sulfurous acid with the formula MgSO
3. Its most common hydrated form has 6 water molecules making it a hexahydrate, MgSO
3·6H
2O. When heated above 40 °C (104 °F), it is dehydrated to magnesium sulfite trihydrate, or MgSO
3·3H
2O.[1] The anhydrous form is hygroscopic, meaning that it readily absorbs water from the air.
References
- ↑ Nývlt, J., "Solubilities of Magnesium Sulfite," Journal of Thermal Analysis and Calorimetry, Volume 66, Number 2 / November, 2001
See also
- Calcium sulfite
- Magnesium sulfate, a.k.a. Epsom salt
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