Difference between revisions of "Calcium sulfite"
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White powder. Calcium sulfite is used for bleaching paper pulp and textiles. It is also used as an antichlor, disinfectant, and food preservative. | White powder. Calcium sulfite is used for bleaching paper pulp and textiles. It is also used as an antichlor, disinfectant, and food preservative. | ||
| − | == | + | ==Risks== |
| + | * American Elements: [https://www.americanelements.com/calcium-sulfite-10257-55-3 SDS] | ||
| + | |||
| + | ==Physical and Chemical Properties== | ||
Soluble in acids with the evolution of sulfur dioxide. Slightly soluble in water, ethanol. | Soluble in acids with the evolution of sulfur dioxide. Slightly soluble in water, ethanol. | ||
| Line 13: | Line 16: | ||
|- | |- | ||
! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | 100 | + | | 100 C |
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
| Line 22: | Line 25: | ||
|} | |} | ||
| − | == | + | ==Resources and Citations== |
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 132 | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 132 | ||
Latest revision as of 14:36, 18 May 2022
Description
White powder. Calcium sulfite is used for bleaching paper pulp and textiles. It is also used as an antichlor, disinfectant, and food preservative.
Risks
- American Elements: SDS
Physical and Chemical Properties
Soluble in acids with the evolution of sulfur dioxide. Slightly soluble in water, ethanol.
| Composition | CaSO3-2H2O |
|---|---|
| Melting Point | 100 C |
| Molecular Weight | mol. wt. = 120.14 |
| Refractive Index | 1.590, 1.595, 1.628 |
Resources and Citations
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 132
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 1755
- CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.545, 1.560, 1.605