Solubilities of o-acetylsalicylic, 4-aminosalicylic, 3,5-dinitrosalicylic, and p-toluic acid, and magnesium-DL-aspartate in water from T = (278 to 348) K

Alexander Apelblat, Emanuel Manzurola

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1020 Scopus citations

Abstract

Solubilities of o-acetylsalicylic, 4-aminosalicylic, 3,5-dinitrosalicylic, and p-toluic acid, and magnesium-DL-aspartate in water were determined in the temperature range (278 to 345) K. The apparent molar enthalpies of solution at T = 298.15 K were derived from these solubilities, and the resulting values are Δso1Hm(o-C9H8O4, m = 0.0226 mol·kg-1) = 22.9 kJ·mol-1, Δso1Hm(4-C7H7O3N, m = 0.00758 mol·kg-1) = 26.1 kJ·mol-1, Δso1Hm(3,5-C7H4O 7N2, m = 0.0633 mol·kg-1) = 28.7 kJ·mol-1, Δso1Hm(p-C8H8O2, m = 0.00258 mol·kg-1) = 24.0 kJ·mol-1, and Δso1Hm(DL-C8H12O 3N2Mg, m = 0.1485 mol·kg-1) = 11.7 kJ·mol-1.

Original languageEnglish
Pages (from-to)85-91
Number of pages7
JournalJournal of Chemical Thermodynamics
Volume31
Issue number1
DOIs
StatePublished - 1 Jan 1999

Keywords

  • Molar enthalpies of solution
  • Organic acids
  • Solubilities

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