Abstract
IT was shown by Setchenow1,2 that the solubility (sw) of a non-electrolyte in an aqueous solution of salt concentration cs was given by 
where s0 is the solubility of the non-electrolyte in pure water and ks is a constant. Deno and Spink3 found that for a given salt, ks was proportional to the characteristic volume of the non-electrolyte which in m3 mol−1 equals the parachor (calculated in the usual way4 in c.g.s. units) × 10−6. The effects on the solubilities of salts in water of the addition of many non-electrolytes is now shown to depend also on the characteristic volumes as well as on the concentrations of these non-electrolytes.
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References
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MCGOWAN, J. Effects of non-electrolytes on the solubilities of salts in water. Nature 252, 296–297 (1974). https://doi.org/10.1038/252296a0
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DOI: https://doi.org/10.1038/252296a0
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