The Disproportionation Constants of Mercury(I) in Dilute Solutions
- 1 December 1977
- journal article
- research article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 50 (12) , 3255-3258
- https://doi.org/10.1246/bcsj.50.3255
Abstract
The disproportionation constants for the Hg22+\ightleftarrowsHg(aq)+Hg2+ reaction have been measured in dilute mercury (I) perchlorate solutions over the temperature range from 15 to 30 °C. The technique was based on a simple kinetic method which made use of a characteristic property of the elemental mercury in aqueous solutions. The disproportionation constant at 25 °C and μ=0.1 was found to be 1.1±0.1×10−8 M, and the associated thermodynamic parameters were ΔH=13.2±0.2 kcal/mol and ΔS=8.0 e.u. The reliability of the method was discussed with relation to the reported values in the literature.Keywords
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