PREPARATION AND CHARACTERIZATION OF AN 8.4-ANGSTROM HYDRATE OF KAOLINITE

Authors
TUNNEY J DETELLIER C
Citation
J. Tunney et C. Detellier, PREPARATION AND CHARACTERIZATION OF AN 8.4-ANGSTROM HYDRATE OF KAOLINITE, Clays and clay minerals, 42(4), 1994, pp. 473-476
Citations number
8
Categorie Soggetti
Mineralogy
Journal title
Clays and clay minerals → ACNP
ISSN journal
00098604
Volume
42
Issue
4
Year of publication
1994
Pages
473 - 476
Database
ISI
SICI code
0009-8604(1994)42:4<473:PACOA8>2.0.ZU;2-W
Abstract
A stable 8.4 Angstrom hydrate of kaolinite was prepared by exchanging ethylene glycol for water in the 10.8 Angstrom intercalate of ethylene glycol in kaolinite. The hydrate of kaolinite was characterized by XR D, FTIR and TGA/DSC. From the TGA data, one can estimate that there is 0.60 water molecule per Al2Si2O5(OH)(4) units. The IR data suggest a similarity of the local environment of the intercalated water in this 8.4 Angstrom hydrate of kaolinite and the 8.4 Angstrom hydrate of nacr ite previously described by Wada (1965).