DETERMINATION OF THE EQUILIBRIUM-CONSTANTS OF ALKYLPHOSPHINIC ACIDS BY INDUCTIVELY COUPLED PLASMA-ATOMIC EMISSION-SPECTROMETRY

被引：11

作者：

MARTINEZ, M ^{[1
]}

MIRALLES, N ^{[1
]}

SASTRE, A ^{[1
]}

HERRANZ, C ^{[1
]}

机构：

[1] UNIV POLITECN CATALUNYA,DEPT CHEM ENGN,ETSEIB,DIAG 647,E-08028 BARCELONA,SPAIN

来源：

ANALYTICAL SCIENCES | 1992年 / 8卷 / 05期

关键词：

MONO(2,4,4-TRIMETHYLPENTYL)PHOSPHINIC ACID; DIOCTYL PHOSPHINIC ACID; MONOOCTYLPHOSPHINIC ACID; INDUCTIVELY COUPLED PLASMA-ATOMIC EMISSION SPECTROMETRY; DIMERIZATION CONSTANT; DISTRIBUTION CONSTANT; ACIDITY CONSTANT;

D O I：

10.2116/analsci.8.613

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The equilibrium constants of some organophosphinic acids have been determined at 25-degrees-C by measuring the distribution ratio of the organophosphinic acid between an aqueous solution of ionic strength 0.05 and toluene as a function of pH for different concentrations of organophosphorus acid compounds. The distribution ratio of the organophosphorus compounds has been obtained by determining phosphorus by inductively coupled plasma-atomic emission spectroscopy. The data have been analyzed graphically,and numerically by the program LETAGROP-DISTR, in order to determine the dimerization constants K2, the acidity constants K(a) and the distribution constants K(D)

引用

页码：613 / 617

页数：5

共 22 条

[1]

AGUILAR M, 1989, REV INORG CHEM, V10, P1

[2] EXTRACTION OF SELECTED TERVALENT LANTHANIDES USING DICYCLOHEXYLPHOSPHINIC ACID [J].

CECCONIE, T ;

FREISER, H .

SOLVENT EXTRACTION AND ION EXCHANGE, 1989, 7 (01) :15-29

[3] PREPARATION AND DETERMINATION OF APPARENT DISSOCIATION CONSTANTS OF SOME ALKYLPHOSPHONIC AND DIALKYLPHOSPHINIC ACIDS [J].

CROFTS, PC ;

KOSOLAPOFF, GM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1953, 75 (14) :3379-3383

[4] SELECTIVITY-STRUCTURE TRENDS IN THE EXTRACTION OF CO(II) AND NI(II) BY DIALKYL PHOSPHORIC, ALKYL ALKYLPHOSPHONIC, AND DIALKYLPHOSPHINIC ACIDS [J].

DANESI, PR ;

REICHLEYYINGER, L ;

MASON, G ;

KAPLAN, L ;

HORWITZ, EP ;

DIAMOND, H .

SOLVENT EXTRACTION AND ION EXCHANGE, 1985, 3 (04) :435-452

[5] STUDIES ON THE EXTRACTION OF METAL COMPLEXES .30. THE DISSOCIATION, DISTRIBUTION AND DIMERIZATION OF DI-NORMAL-BUTYL PHOSPHATE (DBP) [J].

DYRSSEN, D .

ACTA CHEMICA SCANDINAVICA, 1957, 11 (10) :1771-1786

[6]

HERRANZ C, 1988, J DISPERSION SCI TEC, V3, P209

[7] HIGH-SPEED COMPUTERS AS A SUPPLEMENT TO GRAPHICAL METHOD .V. HALTAFALL A GENERAL PROGRAM FOR CALCULATING COMPOSITION OF EQUILIBRIUM MIXTURES [J].

INGRI, N ;

KAKOLOWICZ, W ;

SILLEN, LG ;

WARNQVIST, B .

TALANTA, 1967, 14 (11) :1261-+

[8] CRITICAL-EVALUATION OF SOME EQUILIBRIUM-CONSTANTS INVOLVING ACIDIC ORGANO-PHOSPHORUS EXTRACTANTS [J].

KOLARIK, Z .

PURE AND APPLIED CHEMISTRY, 1982, 54 (12) :2593-2674

[9] EXTRACTION SEPARATION OF TERVALENT LANTHANIDE METALS WITH BIS(2,4,4-TRIMETHYLPENTYL) PHOSPHINIC ACID [J].

KOMATSU, Y ;

FREISER, H .

ANALYTICA CHIMICA ACTA, 1989, 227 (02) :397-404

[10] PARTITION COEFFICIENTS AND THEIR USES [J].

LEO, A ;

HANSCH, C ;

ELKINS, D .

CHEMICAL REVIEWS, 1971, 71 (06) :525-+

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