Spectrophotometric determination of acidity constants of salicylaldoxime in aqueous solution at 25°C and ionic strength of 0.5 M controlled with NaCl

被引：9

作者：

Tshuma, Joel

Alarcon-Angeles, Georgina

Palacios-Beas, Elia

Vargas-Garcia, Roberto

Ramirez-Silva, Maria Teresa

Rojas-Hernandez, Alberto

机构：

[1] Univ Autonoma Metropolitana Iztapalapa, Dept Quim, Area Quim Analit, Mexico City 09340, DF, Mexico

[2] Inst Politecn Nacl, ESIQIE, Dept Ingn Met, Mexico City 05700, DF, Mexico

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2007年 / 66卷 / 4-5期

关键词：

chelating agents; hydroxyoximes; oximes; acidity constants;

D O I：

10.1016/j.saa.2006.05.004

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The equilibrium constants of salicylaldoxime in water at 25 degrees C, 0.5 M of ionic strength with NaCl and concentration of 1 x 10(-4) M were determined spectrophotometrically. The spectral data were processed using SQUAD program. The salicylaldoxime in acid medium has the value of pK(a1) = 1.224 +/- 0.027. In alkaline medium the salicylaldoxime has the values of pK(a2) = 8.551 +/- 0.024 and pK(a3) = 11.728 0.016. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：879 / 883

页数：5

共 37 条

[21] Determination of complex formation constants of neptunium(V) with propionate and lactate in 0.5-2.6 m NaCl solutions at 22-60°C using a solvent extraction technique
Vasiliev, Aleksandr N.
Banik, Nidhu L.
Marsac, Remi
Kalmykov, Stepan N.
Marquardt, Christian M.
RADIOCHIMICA ACTA, 2019, 107 (07) : 623 - 634
[22] THERMODYNAMIC PROPERTIES OF TRANSITION-METALS IN AQUEOUS-SOLUTION .3. THE HEATS OF MIXING AQUEOUS-SOLUTIONS OF CDCL2, NICL2 AND ZNCL2 WITH NACL AT VARYING IONIC-STRENGTH AT 25-DEGREES-C
SCHREIBER, DR
ANDRES, D
HUEBNER, J
RAHMANI, S
JOURNAL OF SOLUTION CHEMISTRY, 1993, 22 (05) : 457 - 467
[23] THERMODYNAMIC PROPERTIES OF TRANSITION-METALS IN AQUEOUS-SOLUTION .2. THE ENTHALPIES OF MIXING OF AQUEOUS-SOLUTIONS OF COCL2, CUCL2, AND MNCL2 WITH NACL AT VARYING IONIC-STRENGTH AT 25-DEGREES-C
SCHREIBER, DR
HUEBNER, J
RAHMANI, S
MILLERO, FJ
JOURNAL OF SOLUTION CHEMISTRY, 1993, 22 (03) : 201 - 210
[24] Determination of the Ionic Association Constants of Na+ with CO32- and HCO3- Ions, in NaCl-NaHCO3-H2O Ternary Systems, at 25 °C
Ganciarov, Mihaela
Stoica, Rusandica
Josceanu, Ana Maria
MOLECULES, 2023, 28 (19):
[25] Bile acids cannot mix with cholesterol in two-dimensional phases (monolayers) formed on the substrate of 5 M aqueous NaCl solution at pH 1.2 and 25 degrees C
Sugihara, G
Yamamoto, SK
Nagadome, S
Lee, S
Sasaki, Y
Shibata, O
Igimi, H
COLLOIDS AND SURFACES B-BIOINTERFACES, 1996, 6 (02) : 81 - 89
[26] IONIC-STRENGTH DEPENDENCE OF FORMATION-CONSTANTS .8. SOLUBILITY OF CALCIUM-OXALATE MONOHYDRATE AND CALCIUM HYDROGENPHOSPHATE DIHYDRATE IN AQUEOUS-SOLUTION, AT 37-DEGREES-C AND DIFFERENT IONIC STRENGTHS
DANIELE, PG
SONEGO, S
RONZANI, M
MARANGELLA, M
ANNALI DI CHIMICA, 1985, 75 (5-6) : 245 - 251
[27] SPECTROPHOTOMETRIC DETERMINATION OF SECOND DISSOCIATION-CONSTANT OF 5-NITROSALICYLIC ACID AND STABILITY OF ITS 1-1 COPPER COMPLEX IN AQUEOUS-SOLUTION AT 25 DEGREES C
DAS, AR
NAIR, VSK
JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1972, 34 (04): : 1271 - &
[28] Cholesterol cannot mix with bile acids in two-dimensional phases (monolayers) formed on 5M aqueous NaCl solution at pH1.2 and 25 degrees C.
Sugihara, G
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1996, 211 : 230 - COLL
[29] EARLY STAGES OF THE HYDROLYSIS OF CHROMIUM(III) IN AQUEOUS-SOLUTION .4. STABILITY-CONSTANTS OF THE HYDROLYTIC DIMER, TRIMER, AND TETRAMER AT 25-DEGREES-C AND I = 1.0 M
STUNZI, H
SPICCIA, L
ROTZINGER, FP
MARTY, W
INORGANIC CHEMISTRY, 1989, 28 (01) : 66 - 71
[30] Studies of fulvic and humic acids .2. Protolytic processes of humic substances from a brown-water lake and from a meadow soil in 0.1 M NaCl aqueous solution at 25 degrees C
Bergelin, A
Wahlberg, O
Agren, S
ACTA CHEMICA SCANDINAVICA, 1997, 51 (10): : 974 - 980

← 1 2 3 4 →