Separation of the System NaCI-NaBr-Nal by “Solventing Out” from Aqueous Solution

Zeev B. Alfassi, Lawrence Ata

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


The precipitation of NaX (X = Cl, Br, I) from their saturated aqueous solution by three miscible organic solvents (MOS)—acetone, acetonitrile and isopropylamine—was studied for various MOS-aqueous solution volumes ratios. It was found that the fraction precipitated f is given by where V is the volume ratio and K and Vcare constants. For the case of NaCl this plot was found to be a broken line composed of two straight lines intersecting at the point of “salting out.1’ A scheme is suggested to separate the three electrolytes using isopropylamine to precipitate NaCl and acetone to precipitate NaBr.

Original languageEnglish
Pages (from-to)593-601
Number of pages9
JournalSeparation Science and Technology
Issue number7
StatePublished - 1 May 1983

ASJC Scopus subject areas

  • Chemistry (all)
  • Chemical Engineering (all)
  • Process Chemistry and Technology
  • Filtration and Separation


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