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The rapid estimation of the layer charges of 2:1 expanding clays from a single alkylammonium ion expansion

Published online by Cambridge University Press:  09 July 2018

A. C. Olis ,
P. B. Malla  and
L. A. Douglas
A. C. Olis
Affiliation:
EBASCO Environmental, 160 Chubb Avenue, Lyndhurst, NJ 07071
P. B. Malla
Affiliation:
Materials Research Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802
L. A. Douglas
Affiliation:
Department of Environmental Sciences, Rutgers University, New Brunswick, New Jersey 08903, USA
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Abstract

An empirical method to estimate rapidly both mean total layer charge and location of charge in smectites and vermiculites is presented, involving exchange with a long-chain alkylammonium ion before and after the Greene-Kelly test. The method utilizes an empirically determined relationship between XRD basal spacings and the mean layer charges calculated from the conventional n-alkylammonium ion-exchange technique using simple linear regression models to describe the relationships for both monolayer-bilayer and bilayer-pseudotrimolecular layer transitions. The method provides a rapid estimation of these charge parameters and facilitates the proper identification of both smectites and vermiculites consistent with the AIPEA criteria for classification based on total layer charge. It is considered superior to conventional methods of differentiation based mainly on expansion and collapse behaviour.

Type
Research Article
Information
Clay Minerals , Volume 25 , Issue 1 , March 1990 , pp. 39 - 50
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1990

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References

Badraoui, M., Bloom, P.R. & Rust, R.H. (1987) Occurrence of high-charge beidellite in a Vertic Haplaquoll of northwestern Minnesota. Soil Sci. Soc. Am. J. , 51, 813–818.CrossRefGoogle Scholar
Bailey, S. W. (1980) Summary of recommendations of AIPEA nomenclature committee. Clays Clay Miner. , 28, 73–78.Google Scholar
Bystrom-Brusewitz, A.M. (1976) Studies on the Li test to distinguish between beidellite and montmorillonite. Proc. Inter. Clay Conf., Mexico City, 419–428.Google Scholar
Chen, C.C., Turner, F.T. & Dixon, J.B. (1985) Layer charge characteristics and ammonium fixation in selected Texas Gulf Coast soils. Abstracts Int. Clay Conf. Denver, , 37.Google Scholar
Douglas, L.A. (1982) Smectites in acidic soils. Proc. Int. Clay Conf., Bologna & Pavia, 635–640.Google Scholar
Greene-Kelly, R. (1953) The identification of montmorillonoids in clays. J. Soil Sci. , 4, 233–237.CrossRefGoogle Scholar
Hausler, W. & Stanjek, H. (1988) A refined procedure for the determination of the layer charge with alkylammonium ions. Clay Miner. , 23, 333–337.Google Scholar
Lagaly, G. & Weiss, A. (1969) Determination of the layer charge in mica-type layer silicates. Proc. Int. Clay Conf., Tokyo, , 173–187.Google Scholar
Lagaly, G., Fernandez Gonzalez, M. & Weiss, A. (1976) Problems in layer-charge determination of montmorillonites. Clay Miner. , 11, 173–187.CrossRefGoogle Scholar
Lagaly, G. (1981) Characterization of clays by organic compounds. Clay Miner. , 16, 1–21.Google Scholar
Lagaly, G. (1982) Layer charge heterogeneity in vermiculites. Clays Clay Miner. , 30, 215–222.CrossRefGoogle Scholar
Laird, D.A., Scott, A.D. & Fenton, T.E. (1987) Interpretation of alkylammonium characterization of soil clays. Soil Sci. Soc. Am. J. , 51, 1659–1663.Google Scholar
Maes, A., Stul, M.S. & Cremers, A. (1979) Layer charge-cation exchange capacity relationships in montmorillonite. Clays Clay Miner. , 27, 387–392.Google Scholar
Malla, P.B. & Douglas, L.A. (1987a) Identification of expanding layer silicates. Layer charge vs. expansion properties. Proc. Int. Clay Conf. Denver, 277–283.Google Scholar
Malla, P.B. & Douglas, L.A. (1987b) Problems in identification of montmorillonite and beidellite. Clays Clay Miner. , 35, 232–236.Google Scholar
Malla, P.B. & Douglas, L.A. (1987c) Layer charge of 2:1 layer silicates: tetrahedral vs. octahedral. Soil Sci. Soc. Am. J. , 51, 1362–1366.CrossRefGoogle Scholar
Mehra, O.P. & Jackson M .(1960) Iron oxide removal by a dithionite-citrate system buffered with sodium bicarbonate. Clays Clay Miner. , 7, 317–327.Google Scholar
Ruehlicke, G.U. & Kohler, E.E. (1981) A simplified procedure for determining layer charge by the n-alkyammonium method. Clay Miner. , 10, 305–307.Google Scholar
Ruehlicke, G. Niederbudde, E.A. (1985) Determination of layer-charge density of expandable 2:1 clay minerals in soils and loess sediment using the alkylammonium method. Clay Miner. , 20, 291–300.Google Scholar
Senkayi, A.L., Dixon, J.B., Hossner, L.R. & Kippenberger, L.A. (1985) Layer charge evaluation of expandable clays by an alkylammonium method. Soil Sci. Soc. Am. J. , 49, 1054–1060.Google Scholar
Stanjek, H. & Friedrich, R. (1986) The determination of layer charge by curve-fitting of Lorentz- and polarization-corrected X-ray diagrams. Clay Miner. , 21, 183–190.CrossRefGoogle Scholar
Stul, M.S. & Mortier, W.J. (1974) The heterogeneity of the charge density in montmorillonites. Clays Clay Miner. , 22, 391–395.Google Scholar
Suquet, H. & Pezerat, H. (1988) Comments on the classification of trioctahedral 2:1 phyllosilicates. Clay Miner. , 36, 184–186.Google Scholar
Weiss, A. (1963) Mica-type layer silicates with alkylammonium ions. Clays Clay Miner. , 10, 191–224.Google Scholar