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Rai, Megha
- Adsorption Studies of Crystal Violet on Sand
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1 Dr. Rafiq Zakaria College for Women, Aurangabad 431 001 (M.S.), IN
2 Post Graduate and Research Centre, Maulana Azad College, Aurangabad Sir Sayyed College, Aurangabad, IN
1 Dr. Rafiq Zakaria College for Women, Aurangabad 431 001 (M.S.), IN
2 Post Graduate and Research Centre, Maulana Azad College, Aurangabad Sir Sayyed College, Aurangabad, IN
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Asian Journal of Research in Chemistry, Vol 4, No 6 (2011), Pagination: 890-892Abstract
In the present paper, we reported the adsorption phenomenon of crystal violet on the surface of sand obtained from river Krishna at karnool district. The effect of variation in concentration, temperature, pH etc have been studied. The applicability of Langmuir, Freundlich, Redlich Peterson and Dubinin Raduskevich is determined.
- Complexation, Bio-evaluation, Magnetic Susceptibility and Thermodynamic study of Newly Synthesized Pharmacologically active Schiff base with La(III), Ce(III) and Sm(III)
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Authors
Affiliations
1 Department of Chemistry, Dr. Rafiq Zakaria College for Women, Aurangabad - 431001, MS, India., IN
2 Department of Chemistry, Tarai College Paithan, Aurangabad, MS, India ., IN
3 Department of Chemistry, Rajshri Shahu College, Pathri, Aurangabad, MS, India., IN
4 Department of Chemistry, Dr. Rafiq Zakaria College for Women, Aurangabad - 431001, MS, India ., IN
1 Department of Chemistry, Dr. Rafiq Zakaria College for Women, Aurangabad - 431001, MS, India., IN
2 Department of Chemistry, Tarai College Paithan, Aurangabad, MS, India ., IN
3 Department of Chemistry, Rajshri Shahu College, Pathri, Aurangabad, MS, India., IN
4 Department of Chemistry, Dr. Rafiq Zakaria College for Women, Aurangabad - 431001, MS, India ., IN
Source
Asian Journal of Research in Chemistry, Vol 15, No 3 (2022), Pagination: 200 - 206Abstract
Present research work describes the successful development of inner transition metal ion complexation, magnetic susceptibility study, thermodynamic parameters and biological applications of synthesized organic ligand. Stability constant Order of developed metal complexes of N-[-(4-chlorophenyl) methylene] isonicotinohydrazide was found as follows La(III) > Ce(III) > Sm(III). Positive μeff clearly indicates paramagnetic nature of developed complexes. During thermodynamic parameter examination we found stability constants for complexes decrease with an increasing temperature, indicating that the composition equilibrium is exothermic in nature. Also ΔH and ΔG were negative for all of the systems which suggested that all of the reactions were exothermic. The ΔS found positive for most of the complexes which indicate in metal-ligand binding process is entropy favourable. In antimicrobial evaluation, we observed that Sm+3 metal complexes of (N-[(E)-(4-chlorophenyl) methylene] isonicotinohydrazde) exhibit superior property specifically against gram negative bacteria with respect to organic ligandKeywords
Complexation, Inner transition elements, Antibacterial, Paramagnetic, Exothermic.References
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