Cryoscopic and calorimetric investigations of betaine and betaine hydrochloride

J. C. Ahluwalia; Frank J. Millero; Robert N. Goldberg; Loren G. Hepler

doi:10.1021/j100874a001

Cryoscopic and calorimetric investigations of betaine and betaine hydrochloride

J. C. Ahluwalia, Frank J. Millero, Robert N. Goldberg, Loren G. Hepler

Ocean Sciences

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3 Scopus citations

Abstract

Results of cryoscopic, calorimetric, and conductometric investigations of betaine and betaine hydrochloride in aqueous solution are presented and used in subsequent thermodynamic calculations. For the ionization of aqueous [(CH₃)₃N+CH₂COOH] we find ΔG° = 2.50 kcal mole^-1, ΔH° = -0.08 kcal mole^-1, ΔS° = -8.7 cal deg^-1 mole, and ΔC_P° = -7 cal deg^-1 mole^-1. A new freezing point apparatus utilizing thermistors is described.

Original language	English (US)
Pages (from-to)	319-323
Number of pages	5
Journal	Journal of physical chemistry
Volume	70
Issue number	2
DOIs	https://doi.org/10.1021/j100874a001
State	Published - Jan 1 1966

ASJC Scopus subject areas

Engineering(all)
Physical and Theoretical Chemistry

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title = "Cryoscopic and calorimetric investigations of betaine and betaine hydrochloride",

abstract = "Results of cryoscopic, calorimetric, and conductometric investigations of betaine and betaine hydrochloride in aqueous solution are presented and used in subsequent thermodynamic calculations. For the ionization of aqueous [(CH3)3N+CH2COOH] we find ΔG° = 2.50 kcal mole-1, ΔH° = -0.08 kcal mole-1, ΔS° = -8.7 cal deg-1 mole, and ΔCP° = -7 cal deg-1 mole-1. A new freezing point apparatus utilizing thermistors is described.",

author = "Ahluwalia, {J. C.} and Millero, {Frank J.} and Goldberg, {Robert N.} and Hepler, {Loren G.}",

year = "1966",

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language = "English (US)",

volume = "70",

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T1 - Cryoscopic and calorimetric investigations of betaine and betaine hydrochloride

AU - Ahluwalia, J. C.

AU - Millero, Frank J.

AU - Goldberg, Robert N.

AU - Hepler, Loren G.

PY - 1966/1/1

Y1 - 1966/1/1

N2 - Results of cryoscopic, calorimetric, and conductometric investigations of betaine and betaine hydrochloride in aqueous solution are presented and used in subsequent thermodynamic calculations. For the ionization of aqueous [(CH3)3N+CH2COOH] we find ΔG° = 2.50 kcal mole-1, ΔH° = -0.08 kcal mole-1, ΔS° = -8.7 cal deg-1 mole, and ΔCP° = -7 cal deg-1 mole-1. A new freezing point apparatus utilizing thermistors is described.

AB - Results of cryoscopic, calorimetric, and conductometric investigations of betaine and betaine hydrochloride in aqueous solution are presented and used in subsequent thermodynamic calculations. For the ionization of aqueous [(CH3)3N+CH2COOH] we find ΔG° = 2.50 kcal mole-1, ΔH° = -0.08 kcal mole-1, ΔS° = -8.7 cal deg-1 mole, and ΔCP° = -7 cal deg-1 mole-1. A new freezing point apparatus utilizing thermistors is described.

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