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  1. 紀要論文
  2. 琉球大学理学部紀要
  3. 34号
  1. 部局別インデックス
  2. 理学部

Spectrophotometric and Calorimetric Studies of the Thermodynamics for the Interaction of Sodium p-Toluenesulfonate with Dodecyltrimethylammonium Bromide Micelles

http://hdl.handle.net/20.500.12000/15190
http://hdl.handle.net/20.500.12000/15190
ca532235-4630-4f16-af5b-9a4b8e8abc36
名前 / ファイル ライセンス アクション
No34p101.pdf No34p101.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2010-01-26
タイトル
タイトル Spectrophotometric and Calorimetric Studies of the Thermodynamics for the Interaction of Sodium p-Toluenesulfonate with Dodecyltrimethylammonium Bromide Micelles
言語 en
作成者 Uchihara, Toshio

× Uchihara, Toshio

en Uchihara, Toshio

Nakasone, Kazuya

× Nakasone, Kazuya

en Nakasone, Kazuya

Arakaki, Akira

× Arakaki, Akira

en Arakaki, Akira

Kinjo, Akio

× Kinjo, Akio

en Kinjo, Akio

宇地原, 敏夫

× 宇地原, 敏夫

ja 宇地原, 敏夫

仲宗根, 一哉

× 仲宗根, 一哉

ja 仲宗根, 一哉

新垣, 明

× 新垣, 明

ja 新垣, 明

金城, 昭夫

× 金城, 昭夫

ja 金城, 昭夫

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 The thermodynamic properties for the interaction of sodium p-toluenesulfonate with dodecyltrimethylammonium bromide micelles were studied by spectrophotometric and calorimetric techniques to compare these two methods with each other as a means for the study of such an interaction. Thermodynamic parameters of K = (2.5 ±0.7) x 10^3 M^<-1>, ΔG°= -4.6±0.4 kcal mol^<-1>, ΔH°= -2.1±0.2 kcal mol^<-1> and ΔS°= 8.4 ±0.7 cal deg^<-1> mol^<-1> were obtained by the spectrophotometric method at 25℃. Calorimetric method gave K=(2.0 ± 1.5) x 10^3 M^<-1>, ΔG°= -4.5±1.O kcal mol^<-1>, ΔH°= -1.40±0.09 kcal mol^<-1> and ΔS°= 10±3 kcal mol^<-1> at the same temperature. The results suggest that the spectrophotometric method is recommended for the determination of equilibrium constant and standard free energy change and calorimetric method for the measurement of standard enthalpy change. Entropy change had better be evaluated by the combination of two methods. Though the calorimetric method produced larger errors in the present study because of the small heat of the interaction, it would be useful for the study of the interactions of the systems which evolve the appreciable heat and to which the spectrophotometric method is not applicable.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学理学部
言語
言語 eng
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/15190
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0286-9640
収録物識別子タイプ NCID
収録物識別子 AN00250774
収録物名
言語 ja
収録物名 琉球大学理学部紀要
書誌情報
号 34, p. 101-111
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