Silver sulfate
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Silver sulfate | |||||||||||||||
Molecular formula | Ag 2 SO 4 | |||||||||||||||
Brief description |
white rhombic crystals |
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External identifiers / databases | ||||||||||||||||
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properties | ||||||||||||||||
Molar mass | 311.79 g mol −1 | |||||||||||||||
Physical state |
firmly |
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density |
5.45 g cm −3 |
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Melting point |
655 ° C |
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boiling point |
Decomposes at 1085 ° C |
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solubility |
poor in water (8 g l −1 at 25 ° C) |
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safety instructions | ||||||||||||||||
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Thermodynamic properties | ||||||||||||||||
ΔH f 0 |
−715.9 kJ / mol |
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Silver sulfate is the silver salt of sulfuric acid in which silver is in the +1 oxidation state . The salt is used, among other things, to purify water (germicidal).
Silver sulfate is made by dissolving silver in hot concentrated sulfuric acid:
or by metathesis of silver nitrate in an aqueous solution of an alkali metal sulfate:
- M = alkali metal ion
this falls out,
Individual evidence
- ↑ a b c Entry on silver sulfate. In: Römpp Online . Georg Thieme Verlag, accessed on December 28, 2014.
- ↑ a b c d e f Entry on silver sulfate in the GESTIS material database of the IFA , accessed on January 10, 2017(JavaScript required) .
- ↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Standard Thermodynamic Properties of Chemical Substances, pp. 5-4.