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Interactions of halloysites with amides: mineralogical factors affecting complex formation

  • G. J. Churchman (a1) and B. K. G. Theng (a1)

Abstract

Complex formation between halloysites, from soil and geological sources, and a series of amides has been investigated. All the amides used can be intercalated to give single-layer complexes with basal spacings between 10·4 Å (for formamide) and 12·4 Å (for N,N-dimethylacetamide). When the interlayer space of halloysite has already been expanded by water, as is the case with fully hydrated samples, the rate and extent of intercalation depend more on the properties of the organic species than on the mineralogy of the clay. With partially and completely dehydrated halloysite, however, complex formation is influenced by the particle size, crystallinity, and iron content of the mineral. A large particle size, a high degree of crystallinity, and a low iron content are all conducive to complex formation. The iron content of halloysite also appears to affect particle shape. Low structural iron contents are associated with long tubular particles, intermediate contents with short and/or wide tubes, and high contents with spheroidal and other non-tubular forms. Halloysites containing high amounts of extractable (non-structural) iron generally show a low intercalating ability.

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Adams, J.M. (1978) Unifying features relating to the 3D structures of some intercalates of kaolinite. Clays Clay Miner. 26, 291295.
Adams, J.M. & Jefferson, D.A. (1976) The crystal structure or a dickiterformamide intercalate (Al2Si2O5(OH)4.HCONH2). Acta Cryst. B32, 11801183.
Aylmore, L.A.G. & Quirk, J.P. (1960) Domain or turbostratic structure of clays. Nature 187, 10461048.
Blakemore, L.C., Searle, P.L. & Daly, B.K. (1981) Methods for chemical analysis of soils. Pp. A8.7A8.9 in: N.Z. Soil Bureau Scientific Report I0A.
Bramao, L., Cady, J.G., Hendricks, S.B. & Swerdlow, W. (1952) Criteria for the characterization of kaolinite, halloysite and a related mineral in clays and soils. Soil Sci. 73, 273287.
Caillere, S., Glaeser, R., Esquevin, J. & Henin, S. (1950) Preparation d'halloysite à 14 Å et à 17 Å. C.R. Acad. Sci. Paris 230, 308310.
Carr, R.M. & Chih, Hwa (1971) Complexes of halloysite with organic compounds. Clay Miner. 9, 153166.
Carson, C.D. & Kunze, G.W. (1970) New occurrence of tabular halloysite. Soil Sci. Soc. Am. Proc. 34, 538540.
Churchman, G.J. (1970) Interlayer water in halloysite. PhD thesis, Univ. Otago, New Zealand.
Churchman, G.J., Aldridge, L.P. & Carr, R.M. (1972) The relationship between the hydrated and dehydrated states of an halloysite. Clays Clay Miner. 20, 241246.
Dixon, J.B. (1977) Kaolinite and serpentine group minerals. Pp. 357403 in: Minerals in Soil Environments (Dixon, J. B. & Weed, S. B., editors). Soil Science Society of America, Madison, Wisconsin, USA.
Hughes, I.R. (1966) Mineral changes of halloysite on drying. N.Z. J. Sci. 9, 103113.
Hughes, J.C. & Brown, G. (1979) A crystallinity index for soil kaolins and its relation to parent rock, climate and soil maturity. J. Soil Sci. 30, 557563.
Kirkman, J.H. (1977) Possible structure of halloysite disks and cylinders observed in some New Zealand rhyolitic tephras. Clay Miner. 8, 199216.
Kunze, G.W. & Bradley, W.F. (1964) Occurrence of a tabular halloysite in a Texas soil. Clays Clay Miner. 12, 523527.
Ledoux, R.L. & White, J.L. (1966) Infrared studies of hydrogen bonding interaction between kaolinite surfaces and intercalated potassium acetate, hydrazine, formamide and urea. J. Colloid Interface Sci. 21, 127152.
MacEwan, D.M.C. (1946) Halloysite-organic complexes. Nature 157, 159160.
MacEwan, D.M.C. (1948) Complexes of clays with organic compounds. 1. Complex formation between montmorillonite and halloysite and certain organic liquids. Trans. Faraday Soc. 44, 349367.
Marsters, S. (1978) Report upon the extraction and industrial uses of halloysite. Proc. Ann. Conf. Aust. Inst. Mining Metallurgy, Whangarei, N.Z. 91100.
Mehra, O.P. & Jackson, M.L. (1960) Iron oxide removal from soils and clays by a dithionite-citrate system buffered with sodium bicarbonate. Clays Clay Miner. 7, 317327.
Nagasawa, K. (1969) Kaolin minerals in Cenozoic sediments of Central Japan. Proc. Int. Clay Conf. Tokyo 1, 1530.
New Zealand Soil Bureau (1968) Soils of New Zealand, Part 3.
Norrish, K. & Hutton, J.T. (1969) An accurate X-ray spectrographic method for the analysis of a wide range of geological samples. Geochim. Cosmochim. Acta 33, 431453.
Olejnik, S., Aylmore, L.A.G., Posner, A.M. & Quirk, J.P. (1968) Infrared spectra of kaolin mineral-dimethyl sulfoxide complexes. J. Phys. Chem. 72, 241249.
Olejnik, S., Posner, A.M. & Quirk, J.P. (1970) The intercalation of polar organic compounds into kaolinite. Clay Miner. 8, 421434.
Parker, T.W. (1969) A classification of kaolinites by infrared spectroscopy. Clay Miner. 8, 135141.
Range, K.J., Range, A. & Weiss, A. (1969) Fire-clay type kaolinite or fire-clay mineral? Experimental classification of kaolinite-halloysite minerals. Proc. Int. Clay Conf. Tokyo 1, 313.
Smykatz-Kloss, W. (1974) The determination of the degree of (dis-)order of kaolinites by means of differential thermal analysis. Chem. Erde 33, 358364.
Tazaki, K.(1982) Analytical electron microscopic studies of halloysite formation processes—morphology and composition of halloysite. Pp. 573584 in: International Clay Conference 1981, Developments in Sedimentology 35 (van Olphen, H. & Veniale, F., editors). Elsevier, Amsterdam.
Theng, B.K.G. (1974) The Chemistry of Clay-Organic Reactions, pp. 239260. Adam Hilger, London.
Theng, B.K.G., Greenland, D.J. & Quirk, J.P. (1967) The swelling in water of complexes of montmoriUonite with polyvinyl alcohol. Aust. J. Soil Res. 5, 6975.
Theng, B.K.G., Russell, M., Churchman, G.J. & Parfitt, R.L. (1982) Surface properties of allophane, halloysite, and imogolite. Clays Clay Miner. 30, 143149.
Tonkin, P.J. (1970) Contorted stratification with clay lobes in volcanic ash beds, Raglan-Hamilton region, New Zealand. Earth Sci. J. 4, 129140.
Wada, S.I. & Mizota, C. (1982) Morphology of iron-rich halloysite. Clays Clay Miner. 30, 315317.
Weaver, C.E. & Pollard, L.D. (1973) The Chemistry of Clay Minerals, pp. 149154. Developments in Sedimentology 15, Elsevier, Amsterdam.
Weiss, A., Thielepape, W., Göring, G., Ritter, W. & Schäfer, H. (1963) Kaolinit-Einlagerungs- Verbindungen. Proc. Int. Clay Conf. Stockholm 1, 287305.
Weiss, A., Thielepape, W. & Orth, H. (1966) Neue Kaolinit-Einlagerungsverbindungen. Proc. Int. Clay Conf. Jerusalem 1, 277293.

Interactions of halloysites with amides: mineralogical factors affecting complex formation

  • G. J. Churchman (a1) and B. K. G. Theng (a1)

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