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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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

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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",

month = jan,

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doi = "10.1021/j100874a001",

language = "English (US)",

volume = "70",

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journal = "Journal of Physical Chemistry",

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TY - JOUR

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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U2 - 10.1021/j100874a001

DO - 10.1021/j100874a001

M3 - Article

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JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

SN - 0022-3654

IS - 2

ER -

Cryoscopic and calorimetric investigations of betaine and betaine hydrochloride

Abstract

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