Abstract
Acetic acid exists as dimers in organic solvents like benzene, toluene and xylene. Adsorption of dimeric acetic acid on activated charcoal (AC) at various temperatures from benzene, toluene and xylene solutions have been studied. The system obeys Langmuir isotherm, thus signifying a monolayer adsorption of dimers. Corrections on AC-solvent pore volume fillings, molecular cross sectional surface area of acetic acid dimers, the adsorption equilibrium constants, the free energy change and the enthalpy change values are computed at different temperatures for the three solvents. The adsorption process has been found to be physisorption type. The FTIR measurements show that the adsorbed acetic acid dimer seems to retain the cyclic structure against the open chain non-cyclic structure.
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References
Adamson A W 1990 InPhysical chemistry of surfaces (New York: Wiley Interscience)
Adamson A W, Dormant L M and Orem M W 1966J. Colloid Interface Sci. 25 206
Afzal M, Ahmad H and Jamila Rifat 1991Sri. Int. 3(3) 185
Barrow G M 1988 InPhysical chemistry (Singapore: McGraw Hill International)
Brunauer S 1945 InAdsorption of gases and vapours (Princeton, NJ: University Press)
Dunken H and Flink P 1962Z. Chem. 2 117
Glasstone S 1984 InTextbook of physical chemistry (New York: Macmillan)
Joynerl G, Barrett E P and Skold R 1951J. Am. Chem. Soc. 73 3155
Kipling J J and Wright E H M 1963J. Phy. Chem. 67 1789
Oscik J 1992 InAdsorption (Chichester: Ellis Horwood)
Parkash S 1973Beinn Conf. Carbon Ext. Abstr. Program(Conf. 730601) 1973Chem. Abstr. 82 149, 160676 w
Pauling L 1991 InThe nature of the chemical bond (New York: Cornell University Press)
Rakshit A K and Pradeep C E 1987Indian J. Chem. A26 328
Serena Software 1988 MMX Calculations. Blumington, Indiana, USA
Silverstein R M, Bassler G C and Morrill T C 1981 InSpectrometric identification of organic compounds (New York: John Wiley & Sons)
Yoshinobu K, Kenichiro H and Todashi H 1990Kagaku Kogaku Ronbunshu 16 411
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Santhanalakshmi, J., Balaji, S. & Raja, T. Adsorption studies of acetic acid dimers on activated charcoal from organic solvents. Proc. Indian Acad. Sci. (Chem. Sci.) 106, 893–902 (1994). https://doi.org/10.1007/BF02843286
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DOI: https://doi.org/10.1007/BF02843286