The determination of the formation constant of triiodide ion in micellar solution of dodecyltrimethylammonium chloride.
スポンサーリンク
概要
- 論文の詳細を見る
Spectrophotometric measurements were undertaken at 360 nm in order to estimate the formation constant of triiodide ion in micellar solution of dodecyltrimethylammonium chloride. The absorption spectra of the solutions suggested that both iodine molecule and triiodide ion are solubilized in a hydrophilic surface region of the surfactant micelle. The apparent formation constant of triiodide ion, <I>K</I><SUB>a</SUB>, was found to be much larger in micellar solution than in water. It was also shown that the value of <I>K</I><SUB>a</SUB> decreases regularly with increasing surfactant concentration. A tentative estimation based on a lamellar micelle model led to the intrinsic formation constant of triiodide ion of 650 mol<SUP>−1</SUP> dm<SUP>3</SUP> or less at 30 °C, which is comparable with that in water. The thermodynamic consideration revealed that the formation reaction of triiodide ion from iodine and iodide ion in micellar solution is accompanied by an anomalous entropy decrease.
- 公益社団法人 日本化学会の論文
著者
-
Satake Iwao
Department Of Chemistry And Bioscience Faculty Of Science Kagoshima University
-
Hayakawa Katumitu
Department Of Chemistry And Bioscience Faculty Of Science Kagoshima University
-
SATAKE Iwao
Department of Chemistry, Faculty of Science, Kagoshima University
-
Kanda Mitsuo
Department of Chemistry, Faculty of Science, Kagoshima University
関連論文
- The Binding Characteristics of Conventional and α,ω-Type Ionic Surfactant Mixtures to Polyion
- The Micellar Parameters of α,ω-Alkanediammonium Bis(decyl sulfate) Solutions and Their Mixtures
- The Micellar Properties of Ionic Surfactants Consisting of the α, ω-Type Surfactant Ion and the Same Type Counter Ion
- Thermodynamics of the Adsolubilization Equilibrium of Rhodamine B by Surfactant-Modified Zeolites
- Solubilization of Water-Insoluble Dyes by Polyion/Surfactant Complexes
- Preferential Solvation Studied by the Fluorescence Spectrum of Pyrene in Water-Alcohol Binary Mixtures
- Determination of the Association Constants and Maximum Binding Capacities between Estradiol and Cytosol of the Uterus by the Least-Squares Analysis of the Scatchard Plot
- Effect of charge density on the cooperative binding isotherm of surfactant ion to polyelectrolyte.
- Conductometric determination of the association constants of .BETA.-cyclodextrin with amphiphilic ions.
- Conductometric and potentiometric studies of the association of .ALPHA.-cyclodextrin with ionic surfactants and their homologs.
- The determination of the formation constant of triiodide ion in micellar solution of dodecyltrimethylammonium chloride.
- Kinetic study of the oxidation of formate by iodin in micellar solutions of alkyltrimethylammonium chlorides.
- Study of cationic surfactant ion selective poly(vinyl chloride) membrane electrode containing dibenzo-18-crown-6.
- Conformational transition of poly(L-glutamic acid) in aqueous decylammonium chloride solution.
- The micellar properties of 1-dodecylpyridinium chloride as studied by the ion-selective electrodes.
- The selectivity characteristics of surfactant ion-sensitive nitrobenzene-membrane electrode.