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Recognition of imogolite structures in allophanic clays by infrared spectroscopy

Published online by Cambridge University Press:  09 July 2018

V. C. Farmer
Affiliation:
Department of Spectrochemistry, The Macaulay Institute for Soil Research, Craigiebuckler, Aberdeen, Scotland
A. R. Fraser
Affiliation:
Department of Spectrochemistry, The Macaulay Institute for Soil Research, Craigiebuckler, Aberdeen, Scotland
J. D. Russell
Affiliation:
Department of Spectrochemistry, The Macaulay Institute for Soil Research, Craigiebuckler, Aberdeen, Scotland
N. Yoshinaga
Affiliation:
Department of Agricultural Chemistry, Ehime University, Matsuyama, Japan

Abstract

Imogolite structures in allophanic clays can be recognized and semi-quantitatively estimated by an absorption band at 348 cm−1. Allowance can be made for interference by aluminous dioctahedral layer silicates present in small amounts.

Sommaire

Sommaire

Il est possible de reconnaïtre les structures imogolites dans les argiles allophaniques et de les estimer semi-quantitativement par une bande d'absorption à 348 cm. Une tolérance peut être envisagée pour l'interérence par des silicates à strate dioctaédrique alumineuse présente en petites quantités.

Kurzreferat

Kurzreferat

Imogolitstrukturen in Allophanton können unter Anwendung eines Absorptionsbandes von 348 cm−1 identifiziert und halbquantitativ abgeschätzt werden. Durch von in kleinen Mengen vorhandenen tonerdehaltigen Silikaten (dioktaedrische Schicht) bedingte Interferenz kann berücksichtigt werden.

Resumen

Resumen

Las estructuras de imogolita en las arcillas alofáinicas pueden reconocerse y calcularse semicuantitativamente por una banda de absorción de 348 cm−1. Puede dejarse un margen de tolerancia para compensar la interferencia por los silicatos aluminosos de la capa dioctaédrica presentes en pequeñas cantidades.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1977

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References

Cradwick, P.D.G., Farmer, V.C., Russell, J.D., Masson, C.R., Wada, K. & Yoshinaga, N. (1972) Nature phys. Sci. 240, 187.Google Scholar
Farmer, V.C. (1964) The Infrared Spectra of Minerals. The Mineralogical Society, London.Google Scholar
Mackenzie, K.J.D. (1970) Clay Miner. 8, 349.Google Scholar
Russell, J.D., Mchardy, W.J. & Fraser, A.R. (1969) Clay Miner. 8, 87.Google Scholar
Wada, K. & Harward, M.E. (1974) Adv. Agron. 26, 211.Google Scholar
Yoshinaga, N. & Aomine, A. (1962) Soil Sci. PL Nutr. 8(2), 6.Google Scholar