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A Galvanic Cell With a Low Emf-Temperature Coefficient
Gerald N Roberts1, Walter J Hamer1
1Institute for Basic Standards, National Bureau of Standards, Washington, D.C. 20234.
Abstract:
This paper presents data on a modified cadmium sulfate saturated standard cell of the Vosburgh type in which a tertiary amalgam containing 11.2 percent bismuth and 8.4 percent cadmium is used as anode and the double salt, CdSO4 · Na2SO4 · 2H2O is added to the usual CdSO4 electrolyte in an amount more than sufficient to saturate the solution with the double salt. Crystals of CdSO4 · Na2SO4 · 2H2O are placed over the surface of both electrodes. The emf of the cell, as a function of temperature, is given by
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