Reports

Potassium-Sodium Ratios in Aqueous Solutions and Coexisting Silicate Melts

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Science  10 Jan 1969:
Vol. 163, Issue 3863, pp. 179-181
DOI: 10.1126/science.163.3863.179

Abstract

Silicate melts were equilibrated with aqueous chloride solutions at temperatures between 770° and 880°C and a total pressure of 1.4 to 2.4 kilobars. The ratio of potassium to sodium in the aqueous phase was (0.74 ± 0.06) times the corresponding ratio in the coexisting melt over the entire range of temperature and pressure for all chloride concentrations between 0.2 and 4.2 moles per kilogram.

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