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Silver sulfate

Argentous sulfate 4.84 g/cm3 (660 °C) 0.69 g/100 mL (10 °C) 0.83 g/100 mL (25 °C) 0.96 g/100 mL (40 °C) 1.33 g/100 mL (100 °C) Insoluble in ethanol nβ = 1.775 nγ = 1.782 | NFPA-H = 2 | NFPA-F = 0 | NFPA-R = 1

Silver sulfate is an inorganic compound with the formula Ag2SO4. It is a white solid with low solubility in water.

Preparation and structure

thumb|left|Packing of ions in solid silver sulfate. Color code: red = O, yellow = S, gray = Ag.|120px Silver sulfate precipitates when an aqueous solution of silver nitrate is treated with sulfuric acid: : It is purified by recrystallization from concentrated sulfuric acid, a step that expels traces of nitrate. Silver sulfate and anhydrous sodium sulfate adopt the same structure.

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 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.

: :

References

References

  1. (1919). "Solubilities of Inorganic and Organic Compounds". D. Van Nostrand Company.
  2. Anatolievich, Kiper Ruslan. "silver sulfate".
  3. {{CRC90
  4. (June 1976). "Standard X-ray Diffraction Powder Patterns". Institute for Materials Research National Bureau of Standards.
  5. {{Sigma-Aldrich
  6. "MSDS of Silver sulfate". Fisher Scientific, Inc.
  7. (1963). "Handbook of Preparative Inorganic Chemistry, 2nd Ed.". Academic Press.
  8. (1932). "Note on the Crystal Structure of Silver Sulphate, Ag2SO4". Zeitschrift für Kristallographie - Crystalline Materials.
  9. (2010). "Ag(II)SO(4): A Genuine Sulfate of Divalent Silver with Anomalously Strong One-Dimensional Antiferromagnetic Interactions.". Angewandte Chemie International Edition in English.
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