MEAN ACTIVITY-COEFFICIENTS AT 25-DEGREES-C FOR NABR-CA(NO3)2-H2O MIXTURES, A TERNARY-SYSTEM WITHOUT A COMMON ION

被引：21

作者：

HAGHTALAB, A ^{[1
]}

VERA, JH ^{[1
]}

机构：

[1] MCGILL UNIV,DEPT CHEM ENGN,MONTREAL H3A 2A7,QUEBEC,CANADA

来源：

JOURNAL OF SOLUTION CHEMISTRY | 1991年 / 20卷 / 05期

关键词：

MEAN ACTIVITY COEFFICIENT; SODIUM BROMIDE + CALCIUM NITRATE; ION-SELECTIVE ELECTRODES; EMF;

D O I：

10.1007/BF00650804

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：

The mean ionic activity coefficients of NaBr in aqueous mixtures of NaBr and Ca(NO3)2 were determined at 25-degrees-C at a total ionic strength of 3, 4.5 and 6 molal. The measurements were made using an electrochemical cell with the ion-selective electrodes (ISE), Na-ISE against Br-ISE as a reference electrode. The experimental mean activity coefficients of NaBr obey Harned's Rule. The mean activity coefficients of Ca(NO3)2 were calculated using the cross differentiation of the mean activity coefficients.

引用

页码：479 / 493

页数：15

共 29 条

[1] IONIC HYDRATION AND SINGLE ION ACTIVITIES IN UNASSOCIATED CHLORIDES AT HIGH IONIC STRENGTHS [J].

BATES, RG ;

STAPLES, BR ;

ROBINSON, RA .

ANALYTICAL CHEMISTRY, 1970, 42 (08) :867-&

[2] DETERMINATION OF MEAN ACTIVITY-COEFFICIENTS WITH ION-SELECTIVE ELECTRODES [J].

BATES, RG ;

DICKSON, AG ;

GRATZL, M ;

HRABECZYPALL, A ;

LINDNER, E ;

PUNGOR, E .

ANALYTICAL CHEMISTRY, 1983, 55 (08) :1275-1280

[3]

BERBORUAH CP, 1970, J CHEM THERMODYN, V2, P431

[4] ANION RESPONSES AND POTENTIAL FUNCTIONS FOR NEUTRAL CARRIER MEMBRANE ELECTRODES [J].

BOLES, JH ;

BUCK, RP .

ANALYTICAL CHEMISTRY, 1973, 45 (12) :2057-2062

[5] ACTIVITY MEASUREMENTS USING A POTASSIUM-SELECTIVE LIQUID ION-EXCHANGE ELECTRODE [J].

BUTLER, JN ;

HUSTON, R .

ANALYTICAL CHEMISTRY, 1970, 42 (06) :676-&

[6] ACTIVITY COEFFICIENT MEASUREMENTS IN AQUEOUS NACL-CACL2 AND NACL-MGCL2 ELECTROLYTES USING SODIUM AMALGAM ELECTRODES [J].

BUTLER, JN ;

HUSTON, R .

JOURNAL OF PHYSICAL CHEMISTRY, 1967, 71 (13) :4479-&

[7]

BUTLER JN, 1979, ACTIVITY COEFFICIENT, V1

[8]

BUTLER JN, 1969, ANAL CHEM, V41, P201

[9]

Cammann K., 1979, WORKING ION SELECTIV

[10]

Covington AK, 1979, ION SELECTIVE ELECTR, V1

← 1 2 3 →