A comparative study of Critical Micelle Concentration (CMC) and Free Energy of Micellization of cationic surfactant and anionic surfactant in different composition of methanol-water mixed solvent media by conductometric method at 308.15 K
Precise measurements on the specific conductivity of cationic surfactant (Dodecyltrimethyl ammonium bromide) and anionic surfactant (Sodium Dodecyl Sulphate) in methanol water mixed solvent media containing 0.1, 0.2 and 0.3 volume fractions of methanol are reported at 308.15 K. Specific conductivit...
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| Format: | Article |
| Language: | English |
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Department of Physics, Mahendra Morang Adarsh Multiple Campus, Tribhuvan University
2012-01-01
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| Series: | Bibechana |
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| Online Access: | https://www.nepjol.info/index.php/BIBECHANA/article/view/4883 |
| _version_ | 1797194009949503488 |
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| author | Sujit Kumar Shah Tulsi Prasad Niraula Ajaya Bhattarai Sujit Kumar Chattarjee |
| author_facet | Sujit Kumar Shah Tulsi Prasad Niraula Ajaya Bhattarai Sujit Kumar Chattarjee |
| author_sort | Sujit Kumar Shah |
| collection | DOAJ |
| description |
Precise measurements on the specific conductivity of cationic surfactant (Dodecyltrimethyl ammonium bromide) and anionic surfactant (Sodium Dodecyl Sulphate) in methanol water mixed solvent media containing 0.1, 0.2 and 0.3 volume fractions of methanol are reported at 308.15 K. Specific conductivities of Dodecyltrimethyl ammonium bromide and Sodium Dodecyl Sulphate increase with increase in concentration and decrease with increase in the volume fractions of methanol. Critical micelle concentration (cmc) increases with increase in volume fraction of methanol in case of both surfactants. Free energy of micellization (ΔGºm) has been calculated. Increase in cmc with increase in volume fractions of methanol has been explained in terms of breaking of structure of water due to co-solvent effect.
Keywords: Critical micelle concentration; methanol-water mixed solvent media; Specific conductivity; Dodecyltrimethylammonium Bromide; Sodiumdodecyl Sulphate
DOI: http://dx.doi.org/10.3126/bibechana.v8i0.4883
BIBECHANA 8 (2012) 37-45
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| first_indexed | 2024-04-24T05:49:28Z |
| format | Article |
| id | doaj.art-cb0eab58c3c649e689c523b77c3dfbe9 |
| institution | Directory Open Access Journal |
| issn | 2091-0762 2382-5340 |
| language | English |
| last_indexed | 2024-04-24T05:49:28Z |
| publishDate | 2012-01-01 |
| publisher | Department of Physics, Mahendra Morang Adarsh Multiple Campus, Tribhuvan University |
| record_format | Article |
| series | Bibechana |
| spelling | doaj.art-cb0eab58c3c649e689c523b77c3dfbe92024-04-23T13:05:55ZengDepartment of Physics, Mahendra Morang Adarsh Multiple Campus, Tribhuvan UniversityBibechana2091-07622382-53402012-01-01810.3126/bibechana.v8i0.4883A comparative study of Critical Micelle Concentration (CMC) and Free Energy of Micellization of cationic surfactant and anionic surfactant in different composition of methanol-water mixed solvent media by conductometric method at 308.15 KSujit Kumar Shah0Tulsi Prasad Niraula1Ajaya Bhattarai2Sujit Kumar Chattarjee3Department of Chemistry, Mahendra Morang Adarsh Multiple Campus (Tribhuvan University), BiratnagarDepartment of Chemistry, Mahendra Morang Adarsh Multiple Campus (Tribhuvan University), BiratnagarDepartment of Chemistry, Mahendra Morang Adarsh Multiple Campus (Tribhuvan University), BiratnagarDepartment of Chemistry, Mahendra Morang Adarsh Multiple Campus (Tribhuvan University), Biratnagar Precise measurements on the specific conductivity of cationic surfactant (Dodecyltrimethyl ammonium bromide) and anionic surfactant (Sodium Dodecyl Sulphate) in methanol water mixed solvent media containing 0.1, 0.2 and 0.3 volume fractions of methanol are reported at 308.15 K. Specific conductivities of Dodecyltrimethyl ammonium bromide and Sodium Dodecyl Sulphate increase with increase in concentration and decrease with increase in the volume fractions of methanol. Critical micelle concentration (cmc) increases with increase in volume fraction of methanol in case of both surfactants. Free energy of micellization (ΔGºm) has been calculated. Increase in cmc with increase in volume fractions of methanol has been explained in terms of breaking of structure of water due to co-solvent effect. Keywords: Critical micelle concentration; methanol-water mixed solvent media; Specific conductivity; Dodecyltrimethylammonium Bromide; Sodiumdodecyl Sulphate DOI: http://dx.doi.org/10.3126/bibechana.v8i0.4883 BIBECHANA 8 (2012) 37-45 https://www.nepjol.info/index.php/BIBECHANA/article/view/4883Critical micelle concentrationmethanol-water mixed solvent mediaSpecific conductivityDodecyltrimethylammonium BromideSodiumdodecyl Sulphate |
| spellingShingle | Sujit Kumar Shah Tulsi Prasad Niraula Ajaya Bhattarai Sujit Kumar Chattarjee A comparative study of Critical Micelle Concentration (CMC) and Free Energy of Micellization of cationic surfactant and anionic surfactant in different composition of methanol-water mixed solvent media by conductometric method at 308.15 K Bibechana Critical micelle concentration methanol-water mixed solvent media Specific conductivity Dodecyltrimethylammonium Bromide Sodiumdodecyl Sulphate |
| title | A comparative study of Critical Micelle Concentration (CMC) and Free Energy of Micellization of cationic surfactant and anionic surfactant in different composition of methanol-water mixed solvent media by conductometric method at 308.15 K |
| title_full | A comparative study of Critical Micelle Concentration (CMC) and Free Energy of Micellization of cationic surfactant and anionic surfactant in different composition of methanol-water mixed solvent media by conductometric method at 308.15 K |
| title_fullStr | A comparative study of Critical Micelle Concentration (CMC) and Free Energy of Micellization of cationic surfactant and anionic surfactant in different composition of methanol-water mixed solvent media by conductometric method at 308.15 K |
| title_full_unstemmed | A comparative study of Critical Micelle Concentration (CMC) and Free Energy of Micellization of cationic surfactant and anionic surfactant in different composition of methanol-water mixed solvent media by conductometric method at 308.15 K |
| title_short | A comparative study of Critical Micelle Concentration (CMC) and Free Energy of Micellization of cationic surfactant and anionic surfactant in different composition of methanol-water mixed solvent media by conductometric method at 308.15 K |
| title_sort | comparative study of critical micelle concentration cmc and free energy of micellization of cationic surfactant and anionic surfactant in different composition of methanol water mixed solvent media by conductometric method at 308 15 k |
| topic | Critical micelle concentration methanol-water mixed solvent media Specific conductivity Dodecyltrimethylammonium Bromide Sodiumdodecyl Sulphate |
| url | https://www.nepjol.info/index.php/BIBECHANA/article/view/4883 |
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