Thermal behaviour of kaolinite intercalated with formamide, dimethyl sulphoxide and hydrazine

J. Kristóf, R. L. Frost, J. T. Kloprogge, E. Horváth, M. Gábor

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

The thermal behaviour of kaolinites intercalated with formamide, dimethyl sulphoxide and hydrazine has been studied by simultaneous TG-DTG-DTA-EGA and TG-MS techniques. The complexes can be decomposed completely without dehydroxylating the mineral. It was found that the amount of intercalated guest molecules per inner surface OH-group is close to unity for the formamide and dimethyl sulphoxide intercalates. For the intercalation of hydrazine it was found that hydrazine is locked in the expanded mineral as hydrazine hydrate and its amount is somewhat higher than that obtained for the other two reagents. The thermal evolution patterns of the guest molecules revealed that all the three reagents are bonded at least in two different ways in the interlayer space.

Original languageEnglish
Pages (from-to)885-891
Number of pages7
JournalJournal of Thermal Analysis and Calorimetry
Volume56
Issue number2
Publication statusPublished - 1999

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hydrazine
Kaolin
Dimethyl sulfoxide
kaolinite
Kaolinite
Hydrazine
hydrazines
Dimethyl Sulfoxide
Minerals
reagents
minerals
Molecules
Intercalation
Hydrates
intercalation
hydrates
Differential thermal analysis
molecules
unity
interlayers

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Thermal behaviour of kaolinite intercalated with formamide, dimethyl sulphoxide and hydrazine. / Kristóf, J.; Frost, R. L.; Kloprogge, J. T.; Horváth, E.; Gábor, M.

In: Journal of Thermal Analysis and Calorimetry, Vol. 56, No. 2, 1999, p. 885-891.

Research output: Contribution to journalArticle

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AU - Gábor, M.

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