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Assessment of gibbsitic material in soil clays by differential thermal analysis and alkali dissolution methods

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Abstract

Precision differential thermal analysis (DTA) equipment provides a sensitive and accurate means of detecting and estimating gibbsite in soil clays. A combination of DTA and sodium carbonate dissolution procedures enables well-ordered gibbsite to be distinguished from poorly-ordered aluminous material.

Résumé

Un équipement d'analyse thermique différentielle de précision a permis de déceler et d'estimer d'une manière sensible et précise la gibbsite dans les argiles du sol. En procédant à la dissolution du carbonate de sodium, combinée avec l'étude par ATD, on peut distinguer la gibbsite bienordonnée dans une substance alumineuse peu-ordonnée.

Zusammenfassung

Eine Präzisions-DTA-Einrichtung gestattet den empfindlichen und genauen Nachweis sowie die Bestimmung von Gibbsit in Tonmineralien. Wird die Methode mit einem Natriumkarbonat-Auflöseverfahren kombiniert, so ist es möglich, den gutgeordneten Gibbsit von schlechter geordneten aluminiumhaltigen Verbindungen zu unterscheiden.

Резюме

Описан специальный п рибор для дифференциального т ермического анализа (ДТА), являющийся чувст вительным и точным дл я обнаружения и оценки гиппсита в глине почвы. При сочет ании ДТА и процедуры р астворения с карбонатом натрия в озможно отличать благоустро енный гиппсит от гипп сита слабо устроенного.

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Author notes

  1. S. S. Jørgensen

    Present address: Department of Soils and Agricultural Chemistry, The Royal Veterinary and Agricultural University, Copenhagen, Denmark

Authors and Affiliations

  1. The Macaulay Institute for Soil Research, Craigiebuckler, Aberdeen, UK

    S. S. Jørgensen, A. C. Birnie, B. F. L. Smith & B. D. Mitchell

Authors
  1. S. S. Jørgensen
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  2. A. C. Birnie
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  3. B. F. L. Smith
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  4. B. D. Mitchell
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Jørgensen, S.S., Birnie, A.C., Smith, B.F.L. et al. Assessment of gibbsitic material in soil clays by differential thermal analysis and alkali dissolution methods. Journal of Thermal Analysis 2, 277–286 (1970). https://doi.org/10.1007/BF01911409

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  • DOI: https://doi.org/10.1007/BF01911409

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