Abstract
Adsorption and immersion were studied simultaneously in methanol-benzene mixtures on non-swelling organophilic illites and swelling organophilic montmorillonites. From the combination of adsroption and calorimetric data, equations were proposed for the determination of the adsorption capacity and the molar enthalpies of wetting differences, if the adsorption layer behaved ideally. From the experimental enthalpy isotherms of wetting and the enthalpy functions related to the ideal behaviour of the layer, qualitative conclusions were drawn on the excess enthalpy of the adsorpition layer. It was again established that the adsorption layer composed of alkyl chains, benzene and methanol has a regular cluster structure in certain concentration ranges, which breaks at higher methanol concentrations. This change is reflected by a significant endothermic peak of the differential molar enthalpy.
For the organophilic montmorillonites, the enthalpy of swelling was determined separately as a function of the composition. The non-swelling organophilic illites were chosen as a reference system.
Similar content being viewed by others
References
Dékány I, Szántó F, Nagy LG, Fóti G (1975) J Coll Interf Sci 50:265
Dékány I, Szántó F, Nagy LG (1978) Coll & Polym Sci 256:150
Dékány I, Szántó F, Nagy LG (1978) Prog Coll & Polym Sci 65:125
Dékány I, Szántó F, Nagy LG (1985) J Coll Interf Sci 103:321
Dékány I, Szántó F, Nagy LG (1986) J Coll Interf Sci 109:376
IUPAC Manual Appendix II Part I (1973) Pure Appl Chem 31:579
Schay G (1970) In: Everett DH (ed) Proceedings International Symposium on Surface Area Determination, Butterworths, London, p 273
Kipling JJ (ed) (1965) Adsorption from Solution of Non-Electrolytes, Academic Press, New York London, p 54
Dékány I, Szántó F, Weiss A, Lagaly G (1985) Ber Bunsenges Phys Chem 89:62
Dékány I, Szántó F, Weiss A, Lagaly G (1986) Ber Bunsenges Phys Chem 90:422
Dékány I, Szántó F, Weiss A, Lagaly G (1986) Ber Bunsenges Phys Chem 90:427
Everett DH (1964) Trans Faraday Soc 60:1803
Schay G, Nagy LG (1972) J Coll Interf Sci 38:302
Rudzinski W, Lajtar L, Zajac I, Wolfram E, Pászli I (1983) J Coll Interf Sci 96:339
Rudzinski W, Zajac I, Hsu CC (1985) J Coll Interf Sci 103:528
Rudzinski W, Zajac I, Dékány I, Szántó F (1986) J Coll Interf Sci 112:473
Dabrowski A (1986) Monatsh Chem 117:139
Everett DH (1965) Trans Faraday Soc 61:2478
Dékány I, Zsednai A, Lászlo Kr, Nagy LG (1986) Coll Surf 19:47
Sircar S (1983) J Chem Soc Faraday Trans 1 79:2085
Woodbury Jr GW, Noll LA (1983) Coll Surf 8:1
Brown OE, Everett DH (1975) In: Everett DH (ed) Colloid Science, Vol 2, The Chemical Society, London, p 52
Dékány I, Szántó F, Rudzinski W (1983) Acta Chim Acad Sic Hung 114:283
Scatchard G, Wood SE, Mochel JM (1946) J Am Chem Soc 68:1957
Kehiaian HV (1976) International Data Series, Selected Data on Mixtures, Series A, Guideline 1a, 1:6
Parfitt GD, Tideswell MW (1981) J Coll Interf Sci 79:518
Kern HE, Piechocki A, Bauer U, Findenegg GH (1978) Prog Coll & Polym Sci 65:118
Liphard M, Glanz P, Pilarski G, Findenegg GH (1980) Prog Coll & Polym Sci 67:131
Kern HE, Findenegg GH (1980) J Coll Interf Sci 75:346
Billett DF, Everett DH, Wright EEH (1964) Proc Chem Soc London, July 216
Author information
Authors and Affiliations
Additional information
Dedicated to Professor Dr. Armin Weiss on the occassion of his 60th birthday.
Rights and permissions
About this article
Cite this article
Dékány, I., Szántó, F. & Nagy, L.G. Wetting and adsorption on organophilic illites and swelling montmorillonites in methanol-benzene mixtures. Colloid & Polymer Sci 266, 82–96 (1988). https://doi.org/10.1007/BF01451536
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01451536