Solubilities of L-glutamic acid, 3-nitrobenzoic acid, p-toluic acid, calcium-L-lactate, calcium gluconate, magnesium-DL-aspartate, and magnesium-L-lactate in water

Emanuel Manzurola, Alexander Apelblat

Research output: Contribution to journalArticlepeer-review

503 Scopus citations

Abstract

Solubilities of L-glutamic acid, 3-nitrobenzoic acid, p-toluic acid, calcium-L-lactate, calcium gluconate, magnesium-DL-aspartate, and magnesium-L-lactate in water were determined in the temperature range 278 K to 343 K. The apparent molar enthalpies of solution at T = 298.15 K as derived from these solubilities are ΔsolHm (L-glutamic acid, msat = 0.0565 mol·kg−1) = 30.2 kJ·mol−1, ΔsolHm (3-nitrobenzoic acid, m = 0.0188 mol·kg−1) = 28.1 kJ·mol−1, ΔsolHm (p-toluic acid, m = 0.00267 mol·kg−1) = 23.9 kJ·mol−1, ΔsolHm (calcium-L-lactate tetrahydrate, m = 0.2902 mol·kg−1) = 25.8 kJ·mol−1, ΔsolHm (calcium gluconate, m = 0.0806 mol·kg−1) = 22.1 kJ·mol−1, ΔsolHm (magnesium-DL-aspartate tetrahydrate, m = 0.1469 mol·kg−1) = 11.5 kJ·mol−1, and ΔsolHm (magnesium-L-lactate trihydrate, m = 0.3462 mol·kg−1) = 3.81 kJ·mol−1.

Original languageEnglish
Pages (from-to)1127-1136
Number of pages10
JournalJournal of Chemical Thermodynamics
Volume34
Issue number7
DOIs
StatePublished - 1 Jan 2002

Keywords

  • Molar enthalpies of solution
  • Organic acids and salts
  • Solubilities

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Physical and Theoretical Chemistry

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