The solubility of halite as a function of temperature in the highly saline Dead Sea brine system
- 1 November 1989
- journal article
- Published by Wiley in Limnology and Oceanography
- Vol. 34 (7) , 1224-1234
- https://doi.org/10.4319/lo.1989.34.7.1224
Abstract
The Dead Sea brine is characterized by high ionic strength (9–10 m) and a Ca‐Cl composition. The lake is currently saturated with respect to aragonite, gypsum, and halite. Harned's rule is applied to calculate the saturation index of halite in the Dead Sea brine system. This system includes brines at ionic strengths in the range of 9–16 m, derived from evaporating Dead Sea brine. To facilitate the calculation, we determined new interaction coefficients experimentally. These were found to be a function of the ionic strength of the solution as well as of the temperature. urn:x-wiley:00243590:media:lno19893471224:lno19893471224-math-0001 The new parameters are used to predict the effect of temperature on halite precipitation in the lake from both the evaporating surface layer and the entire upper water body. The calculated weight of halite expected to precipitate before the onset of carnallite precipitation is on the order of 1010 t. At the present rate of evaporation at least 120 yr will pass before that point is reached.This publication has 0 references indexed in Scilit: