2024-03-28T12:51:47Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02005238
2022-10-31T02:34:48Z
1642837622505:1642837957109:1642837974727
1642838403551:1642838406414
Thermodynamic Study of the Reaction between N-Methylphenothiazine and Iron(3) Ion in SDS-Hexanol Mixed Micellar Solutions
Kinjo, Akio
Sakugawa, Choken
Nakamura Nunez, Irma
Uchihara, Toshio
宇地原, 敏夫
N-methylphenothiazine reacts with Fe(3) ion and reaches equilibrium in the anionic SDS micellar solution as reported by Minero et al. However, the reaction did not take place in the cationic DTAB, non-ionic Brij 35 micellar and waterethanol (1:1) solutions. In order to obtain more information about the effect of surface negative charge of micelle on the reaction, thermodynamic study of the reaction was carried out in SDS-hexanol mixed micellar solutions. The equilibrium constant decreases with increasing the concentration of hexanol in the mixed micellar solutions. Both free energy and enthalpy changes of the reaction shift in the positive direction with increasing the concentration of hexanol, reflecting the fact that the reaction becomes more difficult with increasing the concentration of hexanol. The entropy change seems independent of the concentration of hexnol.
紀要論文
http://purl.org/coar/resource_type/c_6501
琉球大学理学部
1999-11
VoR
http://hdl.handle.net/20.500.12000/15051
0286-9640
AN00250774
琉球大学理学部紀要
Bulletin of the College of Science. University of the Ryukyus
68
30
23
eng
open access