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Rakshit, Animesh Kumar
- Physicochemisty and Applications of Micro-Emulsions
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1 Centre for Surface Science, Department of Chemistry, Jadavpur University, Kolkata 700032, IN
2 Department of Biotechnology, West Bengal University of Technology, BF 142, Sector 1, Salt Lake, Kolkata 700 064, IN
1 Centre for Surface Science, Department of Chemistry, Jadavpur University, Kolkata 700032, IN
2 Department of Biotechnology, West Bengal University of Technology, BF 142, Sector 1, Salt Lake, Kolkata 700 064, IN
Source
Journal of Surface Science and Technology, Vol 22, No 3-4 (2006), Pagination: 159-186Abstract
Microemulsions are a class of microheterogeneous systems having unique features of stability, solubilization capacity, structural morphology, physical property and applicability. Depending on the types of oil and amphiphile, and environmental conditions, microemulsion systems of varied categories, consistencies and internal structures may result. The essentials of microemulsion systems are thus controlled by external factors and internal chemistry. The underlying physicochemical principles controlling their formation, phase behaviour and related properties supplemented with experimental observations need time to time assessment and appraisal to scientists and technologists. This review aims at such a purpose and makes a concise presentation of the physicochemistry and applications of microemulsions to bring the readers up-to-date with the present state of knowledge on the subject. The features that will be presented in some details are the theory of microemulsion formation, general procedure for their preparation, phase forming behaviour of mixed water, amphiphile and oil systems, viscosity and conductance behaviour in relation to internal consistency and structure. Important applications of microemulsions in enhnanced petroleum recovery, biotechnology, pharmaceutics, nanoparticle preparation, corrosion inhibition, etc. will also be discussed.Keywords
Microemulsion, Theory, Preparation, Phase Behaviour, Structure, Properties, Viscosity, Conductance, Application.
- Proton NMR Study of Triton X 100 Reverse Micellar System in CCl4
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Authors
Affiliations
1 Department of Chemistry, M. S. University of Baroda, Baroda 390 002, IN
1 Department of Chemistry, M. S. University of Baroda, Baroda 390 002, IN
Source
Journal of Surface Science and Technology, Vol 2, No 2 (1986), Pagination: 97-101Abstract
In the present NMR study of the three component (Triton X 100, iodine and carbon tetrachloride) system, it is shown that the solubilized iodine is really present in the core of the reverse micelle formed, and that the surfactant interacts with iodine through the oxygen of the 'OH' group present in the core.- One Hundred Years of Ghosh’s Strong Electrolyte Theory
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Authors
Affiliations
1 Indian Society for Surface Science and Technology, Jadavpur University, Kolkata 700 032, IN
2 Centre for Surface Science, Department of Chemistry, Jadavpur University, Kolkata 700 032, IN
1 Indian Society for Surface Science and Technology, Jadavpur University, Kolkata 700 032, IN
2 Centre for Surface Science, Department of Chemistry, Jadavpur University, Kolkata 700 032, IN
Source
Journal of Surface Science and Technology, Vol 34, No 1-2 (2018), Pagination: 1-6Abstract
Abnormal behaviour of strong electrolytes was a hot research topic around the turn of twentieth century. In 1918, J. C. Ghosh published a series of articles dealing with this abnormal behaviour and suggested a cube ischolar_main law for data correlation. The publications were both praised and criticised. Debye and Huckel published in 1923 their well-known theory of strong electrolytes, the square ischolar_main law, which completely overshadowed Ghosh’s theory. By the middle of twentieth century, however, Ghosh’s theory became prominent again, particularly for concentrated electrolyte solutions, in the light of pseudo-lattice theory of strong electrolytes. In this article, we discuss some features and historical developments of Ghosh’s theory to commemorate its centenary year.References
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