Mercury(I) sulfate

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Mercury(I) sulfate
IUPAC name

Mercury(I) sulfate

Other names

Mercurous sulfate

Identifiers
CAS number 7783-36-0 YesY
PubChem 24545
EC number 231-993-0
Properties
Molecular formula Hg2SO4
Molar mass 497.24 g/mol
Appearance whitish-yellow crystals
Density 7.56 g/cm3
Solubility in water 0.051 g/100 mL (25 °C)
0.09 g/100 mL (100 °C)
Solubility soluble in dilute nitric acid
Structure
Coordination
geometry		 monoclinic
Thermochemistry
Std enthalpy of
formation ΔfHo298		 -743.1 kJ·mol-1
Standard molar
entropy So298		 200.7 J·mol-1·K-1
Specific heat capacity, C 132 J·mol-1·K-1[1]
Related compounds
Other anions Mercury(I) fluoride
Mercury(I) chloride
Mercury(I) bromide
Mercury(I) iodide
Other cations Mercury(II) sulfate
Cadmium sulfate
Thallium(I) sulfate
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Mercury(I) sulfate, commonly called mercurous sulphate (UK) or mercurous sulfate (US) is the chemical compound Hg2SO4.[2]

Preparation

It can be produced by a reaction of mercury(I) nitrate with a source of sulfate ions:[3]

Hg2(NO3)2 + SO42- → Hg2SO4 + 2 NO3-

It can also be prepared by reacting an excess of mercury with concentrated sulfuric acid:[3]

2 Hg + 2 H2SO4 → Hg2SO4 + 2 H2O + SO2

References

  1. ↑ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 5–19, ISBN 0-8493-0594-2 
  2. ↑ Intermediate Inorganic Chemistry by J. W. Mellor, published by Longmans, Green and Company, London, 1941, page 388
  3. ↑ 3.0 3.1 Google Books result, accessed 11 December 2010


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