Silver sulfite
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| Names | |
|---|---|
| IUPAC name
Silver(I) sulfite, Silver sulfite | |
| Identifiers | |
13465-98-0  | |
| ChemSpider | 2341258 |
| EC-number | 236-714-6 |
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| Jmol-3D images | Image |
| PubChem | 3084149 |
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| Properties | |
| Molecular formula |
Ag2O3S |
| Molar mass | 295.80 g·mol−1 |
| Appearance | White crystals |
| Odor | Odorless |
| Melting point | 100 °C (212 °F; 373 K) decomposes[1][2] |
| 4.6 mg/L (20 °C)[1] | |
| Solubility product (Ksp) |
1.5·10−14[1] |
| Solubility | Soluble in aq. NH4OH, alkali sulfites, AcOH Decomposes in strong acids[3] Insoluble in liquid SO2[4] |
| Structure | |
| Crystal structure | Monoclinic, mP24[5] |
| Space group | P21/c, No. 14[5] |
| Point group | 2/m[5] |
| Lattice constant | a = 4.6507 Å, b = 7.891 Å, c = 11.173 Å[5] |
| Lattice constant | α = 90°, β = 120.7°, γ = 90° |
| Hazards | |
| GHS pictograms |  [2] |
| GHS signal word | Warning |
| H315, H319, H335[2] | |
| P261, P305+351+338[2] | |
| EU classification |  Xi |
| R-phrases | R36/37/38 |
| S-phrases | S26, S36 |
| Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | |
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| Infobox references | |
Silver sulfite is the chemical compound with the formula Ag2SO3. This unstable silver compound when heated and/or in light it decomposes to silver dithionate and silver sulfate.[4]
Preparation
Silver sulfite can be prepared by dissolving silver nitrate with the stoichiometric quantity of sodium sulfite solution, yielding a precipitation of silver sulfite by the following reaction:
- 2 AgNO3 + Na2SO3
Ag2SO3 + 2 NaNO3
After precipitation then filtering silver sulfite, washing it using well-boiled water, and drying it in vacuum.[4]
References
- ↑ 1.0 1.1 1.2 Lide, David R., ed. (2009). CRC Handbook of Chemistry and Physics (90th ed.). Boca Raton, Florida: CRC Press. ISBN 978-1-4200-9084-0.
- ↑ 2.0 2.1 2.2 2.3 Sigma-Aldrich Co., Silver carbonate. Retrieved on 2014-07-31.
- ↑ Comey, Arthur Messinger; Hahn, Dorothy A. (1921-02). A Dictionary of Chemical Solubilities: Inorganic (2nd ed.). New York: The MacMillan Company. p. 1046. Check date values in:
|date=(help) - ↑ 4.0 4.1 4.2 Brauer, Georg, ed. (1965). Handbook of Preparative Inorganic Chemistry 2. New York: Academic Press Inc. p. 1043. ISBN 0323161294.
- ↑ 5.0 5.1 5.2 5.3 Larsson, Lars Olof (1969). "The Crystal Structure of Silver Sulphite". Acta Chemica Scandinavica 23 (7): 2261–2269. doi:10.3891/acta.chem.scand.23-2261.
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