Thermodynamics of Protonation of Aqueous Triethylenediamine

Author

John W. Larson
Gary L. Bertrand, Missouri University of Science and TechnologyFollow
Loren G. Hepler

Abstract

Calorimetric determinations of heats of solution of solid triethylenediamine in water and in aqueous acid at 25°C. lead to the following: NR3NH+(aq) = H+(aq) + NR3N(aq) ΔH° = 7.21 kcal. per mole and +HNR3NH+(aq) = 2H+(aq) + NRN(aq) ΔH° = 10.18 kcal. per mole. Combination of these ΔH° values with ΔG° values from ionization constants leads to ΔS° = -15.2 and ΔS° = -18.8 cal. deg. -1 mole-1 for the two ionization reactions indicated above.

Recommended Citation

J. W. Larson et al., "Thermodynamics of Protonation of Aqueous Triethylenediamine," Journal of Chemical and Engineering Data, American Chemical Society (ACS), Jan 1966.

The definitive version is available at https://doi.org/10.1021/je60031a045

Department(s)

Chemistry

International Standard Serial Number (ISSN)

0021-9568

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1966 American Chemical Society (ACS), All rights reserved.

Publication Date

01 Jan 1966