Skip to main content Accessibility help

Removal of organic matter by disodium peroxodisulphate: effects on mineral structure, chemical composition and physicochemical properties of some clay minerals

  • A. P. Menegatti (a1), G. L. Früh-Green (a2) and P. Stille (a3)


The use of disodium peroxodisulphate combined with a neutral buffer is a new method for the efficient removal of organic matter from clay-bearing sediments. The effects of this oxidation procedure on mineral structure were investigated by treatment of different standard clay minerals (kaolinite ‘china clay’, illite ‘Le Puy’, montmorillonite SWy-1). The materials were characterized by means of XRD, FTIR, SEM and TEM before and after leaching with disodium peroxodisulphate. Systematic experiments were conducted to determine the effects of leaching on the chemical and isotopic composition of oxygen, hydrogen and K-Ar in these samples. Effects on the physicochemical properties of the clays such as BET external surface area, cation exchange capacity (CEC) and expandability with ethylene glycol were also investigated. The results show that structure, chemical composition, oxygen and hydrogen isotope ratios, as well as the K-Ar system remain unaffected by leaching with disodium peroxodisulphate. The CEC and expandability remain unchanged, whereas changes in BET area can be attributed to mechanical dispersion by ultrasonic treatment.



Hide All
Anderson, J.U. (1963) An improved pretreatment for mineralogical analysis of samples containing organic matter. Clays Clay Miner. 12, 380388.
Bonhomme, M.G., Thuizat, R., Pinault, Y., Clauer, N., Wendling, R. & Winkler, R. (1975) Méthode de datation potassium-argon. Appareillage et technique. Note technique de l'Instituí de Géologie, Univ. L. Pasteur, Strasbourg. 3, 53 p.
Borthwick, J. & Harmon, R.S. (1982) A note regarding C1F3 as an alternative to BrF5 for oxygen isotope analysis. Geochim. Cosmochim. Acta, 46, 16651668.
Bristow, C.M. (1993) The genesis of the China Clays of South-West England — a multistage story. Pp. 171-203 in: Kaolin Genesis and Utilization (Murray, H. et al, editors), Clay Minerals Society Spec. Publ., 1, Boulder, CO, USA.
Brunauer, S., Emmett, P.H. & Teller, E. (1938) Adsorption of gases in multimolecular systems. J. Am. Chem. Soc. 60, 309319.
Clauer, N. & Chaudhuri, S. (1995) Clays in Crustal Environments, Isotope Dating and Tracing. Springer-Verlag, Berlin.
Fagan, R. & Longstaffe, F. (1997) Hydrogen-isotope exchange in smectite? Abstract, 11th Int. Clay Conf. Ottawa.
Gaudette, H.E., Grim, R.E. & Metzger, C.E. (1966) Illite, A model based on the sorption behaviour of cesium. Am. Miner. 51, 16491656.
Gluskoter, H.I. (1964) Electronic low-temperature ashing of bituminous coal. Fuel, 43, 285291.
Girard, J.-P. & Fouillac, A.-M. (1995) Géochimie isotopique de l'oxygène et de l'hydrogène des argiles: exemples d'application aux domaines diagénétique et géothermique. Bull. Centres Reck Explor.-Prod. Elf Aquitaine, 19, 167195.
Grim, R.E., Bray, R.H. & Bradley, W.F. (1937) The mica in argillaceous sediments. Am. Miner. 11, 813-829.
Hower, J. & Mowatt, T. (1966) The mineralogy of illites and mixed-layer illite-montmorillonites. Am. Miner. 51, 825854.
Kóster, H.M. (1996) Mineralogical and chemical heterogeneity of three standard clay mineral samples. Clay Miner. 31, 417422.
Jackson, M.L. (1956) Soil Chemical Analysis - Advanced Course. (Jackson, M.L., editor) Madison, Wisconsin.
Mackenzie, R.C. (1951) A micromethod for determination of cation-exchange capacity of clay. J. Coll. Sci. 6, 219222.
Maegdefrau, E. & Hofman, U. (1937) Glimmerartige Mineralien als Tonsubstanzen. Zeitschr. Kristallographie, -geometric -physik, -chemie, 98, 3159.
Magyar, S. & Von Moos, A. (1947) Der glimmerartige Ton in der Trias des Mte. Casiano, Kt. Tessin. Schweiz. Mineral. Petrogr. Mitt. 27, 2134.
Meier, L.P. & Menegatti, A.P. (1997) A new, efficient, one step method for the removal of organic matters from clay containing sediments. Clay Miner. 32, 557563.
Mitchell, B.D., Smith, B.F.L. & De Endredy, A.S. (1971) The effect of buffered sodium dithionite solution and ultrasonic agitation on soil clays. Israel J. Chem. 9, 4552.
Moore, D.M. & Reynolds, R.C. (1997) X-ray Diffraction and the Identification and Analysis of Clay Minerals, Oxford University Press, Oxford, Second Edition.
Mourn, J. & Rosenqvist, I.T. (1958) Hydrogen (protium)- deuterium exchange in clays. Geochim. Cosmochim. Acta, 14, 250252.
Müller-Vonmoos, M. & Jenny, F. (1970) Einfluss der Beschallung auf Kürnung, rheologische Eigenschaften, Sedimentationsverhalten und Injizierbarkeit wässriger Opalit-Suspensionen. Beitr. zur Geol. der Schweiz, 50, 227243.
Pusch, R. (1966) Ultrasonic dispersion of clay suspensions. Geologiska Föreningens i Stockholm Förhanlingar, 88, 395403.
Roberson, H.E., Weir, A.H. & Woods, R.D. (1968) Morphology of particles size-fractionated Na-montmorillonites. Clays Clay Miner. 16, 239247.
Russell, J.D. & Fraser, A.R. (1994) Infrared methods. Pp. 11-67 in: Clay Mineralogy: Spectroscopic and Chemical Determinative Methods (Wilson, M.J., editor), Chapman & Hall, London.
Savin, S.M. & Epstein, S. (1970) The oxygen and hydrogen isotope geochemistry of clay minerals. Geochim. Cosmochim. Acta, 34, 2542.
Sheppard, S.M.F. & Gilg, H.A. (1996) Stable isotope geochemistry of clay minerals. Clay Miner. 31, 124.
Środoń, J. (1980) Precise identification of illite/smectite interstratifications by X-ray powder diffraction. Clays Clay Miner. 28, 401411.
Srodoñ, J. & Eberl, D. (1980) The presentation of X-ray data for clay minerals. Clay Miner. 15, 317320.
Taieb, R. (1990) Les isotopes de l'hydrogéne, carbone et oxygene dans les sediments argileux et les eaux de formation. These, Inst. Nat. Polytechnique de Lorraine, Nancy, France.
Van Olphen, H. & Fripiat, J.J. (1979) Data Handbook for Clay Materials and other Non-metallic Minerals. (Van Olphen, H. & Fripiat, J., editors) Pergamon Press, Oxford.
Weiss, A. (1958) Kationenaustausch der Tonminerale. I. Vergleich der Untersuchungs-methoden. Z. anorg. allgem. Chem. 297, 232-256.

Related content

Powered by UNSILO

Removal of organic matter by disodium peroxodisulphate: effects on mineral structure, chemical composition and physicochemical properties of some clay minerals

  • A. P. Menegatti (a1), G. L. Früh-Green (a2) and P. Stille (a3)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.