Enthalpies of solution of citrates and hydrogen citrates of lithium, sodium, and potassium

Alexander Apelblat

doi:10.1006/jcht.1994.1019

Enthalpies of solution of citrates and hydrogen citrates of lithium, sodium, and potassium

Alexander Apelblat

Department of Chemical Engineering

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Abstract

Enthalpies of solution of six citrates in water were measured in a Parr calorimeter. The molar enthalpies of solution are: Δ_solH_m(298.22K, m = 0.01491 mol·kg^-1) = -(51.42 ± 1.34) kJ·mol^-1 for trilithium citrate tetrahydrate; Δ_solH_m(298.14 K, m = 0.02817 mol·kg^-1) = (6776 ± 160) J·mol^-1 for trisodium citrate dihydrate; Δ_solH_m (298.41 K, m = 0.01759 mol·kg^-1) = (23.28 ± 0.63) kJ·mol^-1 for disodium hydrogen citrate; Δ_solH_m(298.37 K, m = 0.01175 mol·kg^-1) = (27.79 ± 0.23x) kJ·mol^-1 for sodium dihydrogen citrate; Δ_solH_m(298.19 K, m = 0.01272 mol·kg^-1) = (7087 ± 197) J·mol^-1 for tripotassium citrate monohydrate; and Δ_solH_m(298.08 K, m = 0.01795 mol·kg^-1) = (35.43 ± 0.52) kJ·mol^-1 for potassium dihydrogen citrate.

Original language	English
Pages (from-to)	49-51
Number of pages	3
Journal	Journal of Chemical Thermodynamics
Volume	26
Issue number	1
DOIs	https://doi.org/10.1006/jcht.1994.1019
State	Published - 1 Jan 1994

ASJC Scopus subject areas

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

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title = "Enthalpies of solution of citrates and hydrogen citrates of lithium, sodium, and potassium",

abstract = "Enthalpies of solution of six citrates in water were measured in a Parr calorimeter. The molar enthalpies of solution are: ΔsolHm(298.22K, m = 0.01491 mol·kg-1) = -(51.42 ± 1.34) kJ·mol-1 for trilithium citrate tetrahydrate; ΔsolHm(298.14 K, m = 0.02817 mol·kg-1) = (6776 ± 160) J·mol-1 for trisodium citrate dihydrate; ΔsolHm (298.41 K, m = 0.01759 mol·kg-1) = (23.28 ± 0.63) kJ·mol-1 for disodium hydrogen citrate; ΔsolHm(298.37 K, m = 0.01175 mol·kg-1) = (27.79 ± 0.23x) kJ·mol-1 for sodium dihydrogen citrate; ΔsolHm(298.19 K, m = 0.01272 mol·kg-1) = (7087 ± 197) J·mol-1 for tripotassium citrate monohydrate; and ΔsolHm(298.08 K, m = 0.01795 mol·kg-1) = (35.43 ± 0.52) kJ·mol-1 for potassium dihydrogen citrate.",

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N2 - Enthalpies of solution of six citrates in water were measured in a Parr calorimeter. The molar enthalpies of solution are: ΔsolHm(298.22K, m = 0.01491 mol·kg-1) = -(51.42 ± 1.34) kJ·mol-1 for trilithium citrate tetrahydrate; ΔsolHm(298.14 K, m = 0.02817 mol·kg-1) = (6776 ± 160) J·mol-1 for trisodium citrate dihydrate; ΔsolHm (298.41 K, m = 0.01759 mol·kg-1) = (23.28 ± 0.63) kJ·mol-1 for disodium hydrogen citrate; ΔsolHm(298.37 K, m = 0.01175 mol·kg-1) = (27.79 ± 0.23x) kJ·mol-1 for sodium dihydrogen citrate; ΔsolHm(298.19 K, m = 0.01272 mol·kg-1) = (7087 ± 197) J·mol-1 for tripotassium citrate monohydrate; and ΔsolHm(298.08 K, m = 0.01795 mol·kg-1) = (35.43 ± 0.52) kJ·mol-1 for potassium dihydrogen citrate.

AB - Enthalpies of solution of six citrates in water were measured in a Parr calorimeter. The molar enthalpies of solution are: ΔsolHm(298.22K, m = 0.01491 mol·kg-1) = -(51.42 ± 1.34) kJ·mol-1 for trilithium citrate tetrahydrate; ΔsolHm(298.14 K, m = 0.02817 mol·kg-1) = (6776 ± 160) J·mol-1 for trisodium citrate dihydrate; ΔsolHm (298.41 K, m = 0.01759 mol·kg-1) = (23.28 ± 0.63) kJ·mol-1 for disodium hydrogen citrate; ΔsolHm(298.37 K, m = 0.01175 mol·kg-1) = (27.79 ± 0.23x) kJ·mol-1 for sodium dihydrogen citrate; ΔsolHm(298.19 K, m = 0.01272 mol·kg-1) = (7087 ± 197) J·mol-1 for tripotassium citrate monohydrate; and ΔsolHm(298.08 K, m = 0.01795 mol·kg-1) = (35.43 ± 0.52) kJ·mol-1 for potassium dihydrogen citrate.

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Enthalpies of solution of citrates and hydrogen citrates of lithium, sodium, and potassium

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