| Watchedfields | changed |
|---|---|
| Verifiedrevid | 464391509 |
| Iupacname | Silver(I) sulfate |
| Othernames | Disilver sulfate Argentous sulfate |
Silver sulfate is an inorganic compound with the formula Ag2SO4. It is a white solid with low solubility in water.
Preparation and structure
Silver sulfate precipitates when an aqueous solution of silver nitrate is treated with sulfuric acid:
- 2 AgNO3 + H2SO4 → Ag2SO4 + 2 HNO3
It is purified by recrystallization from concentrated sulfuric acid, a step that expels traces of nitrate.[1] Silver sulfate and anhydrous sodium sulfate adopt the same structure.[2]
Silver(II) sulfate
The synthesis of silver(II) sulfate (AgSO4) with a divalent silver ion instead of a monovalent silver ion was first reported in 2010[3] by adding sulfuric acid to silver(II) fluoride (HF escapes). It is a black solid that decomposes exothermically at 120 °C with evolution of oxygen and the formation of the silver(I) pyrosulfate.
- AgF2 + H2SO4 → AgSO4 + 2 HF
- 4 AgSO4 → 2 Ag2S2O7 + O2
References
- ^ O. Glemser & R. Sauer (1963). "Silver Sulfate". Handbook of Preparative Inorganic Chemistry, 2nd Ed.. Vol. 2pages=1042. G. Brauer (ed.). NY, NY: Academic Press.
- ^ Zachariasen, W. H. (1932). "Note on the Crystal Structure of Silver Sulphate, Ag2SO4". Zeitschrift für Kristallographie - Crystalline Materials. 82 (1–6): 161–162. doi:10.1524/zkri.1932.82.1.161. S2CID 101362527
- ^ Malinowski, P.; Derzsi, M.; Mazej, Z.; Jagličić, Z.; Gaweł, B.; Lasocha, W.; Grochala, W. (2010). "Ag(II)SO(4): A Genuine Sulfate of Divalent Silver with Anomalously Strong One-Dimensional Antiferromagnetic Interactions.". Angewandte Chemie International Edition in English. 49 (9): 1683–1686. doi:10.1002/anie.200906863. PMID 20084660