THE PROTONATION CONSTANT OF TRIETHANOLAMINE IN KBR AND KNO3 SOLUTIONS AT 25-DEGREES-C

被引：24

作者：

HERRERO, R ^{[1
]}

ARMESTO, XL ^{[1
]}

ARCE, F ^{[1
]}

DEVICENTE, MS ^{[1
]}

机构：

[1] UNIV A CORUNA, DEPT QUIM FUNDAMENTAL & IND, AVDA ZAPATEIRA S-N, LA CORUNA, SPAIN

来源：

JOURNAL OF SOLUTION CHEMISTRY | 1992年 / 21卷 / 11期

关键词：

POTENTIOMETRY; GLASS ELECTRODES; STOICHIOMETRIC CONSTANTS; TRIETHANOLAMINE; PITZER EQUATIONS;

D O I：

10.1007/BF00651863

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We determined the stoichiometric acid-base constants of triethanolamine at 25-degrees-C in KBr and KNO3 at different ionic strengths by the potentiometric technique using glass electrodes sensitive to the H+ ion. By applying the Pitzer equations for the activity coefficients of the species present in the medium we obtained equations accounting for the dependency of pK on the ionic strength. The coefficients thus obtained are critically analyzed.

引用

页码：1185 / 1193

页数：9

共 12 条

[1]

Albert, 1984, DETERMINATION IONIZA

[2] THE PKSTAR FOR THE DISSOCIATION OF TRISH+ IN NACLO4 MEDIA [J].

IZAGUIRRE, M ;

MILLERO, FJ .

JOURNAL OF SOLUTION CHEMISTRY, 1987, 16 (10) :827-834

[3] THERMODYNAMICS OF IONIZATION OF AQUEOUS ALKANOLAMINES [J].

KIM, JH ;

DOBROGOWSKA, C ;

HEPLER, LG .

CANADIAN JOURNAL OF CHEMISTRY, 1987, 65 (08) :1726-1728

[4] SIMULTANEOUS DETERMINATION OF GLASS-ELECTRODE PARAMETERS AND PROTONATION CONSTANTS [J].

MAY, PM .

TALANTA, 1983, 30 (11) :899-900

[5] THE USE OF GLASS ELECTRODES FOR THE DETERMINATION OF FORMATION-CONSTANTS .5. MONTE-CARLO ANALYSIS OF ERROR PROPAGATION [J].

MAY, PM ;

MURRAY, K .

TALANTA, 1988, 35 (12) :933-941

[6] THE ESTIMATION OF THE PKHA-STAR OF ACIDS IN SEAWATER USING THE PITZER EQUATIONS [J].

MILLERO, FJ .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1983, 47 (12) :2121-2129

[7]

PENEDO F, UNPUB

[8]

Pitzer K.S., 1979, ACTIVITY COEFFICIENT, V2nd

[9] THERMODYNAMICS OF ELECTROLYTES .1. THEORETICAL BASIS AND GENERAL EQUATIONS [J].

PITZER, KS .

JOURNAL OF PHYSICAL CHEMISTRY, 1973, 77 (02) :268-277

[10]

Robinson R. A., 1959, ELECTROLYTE SOLUTION

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