Preparation and dehydration behaviour of thomsonite with ideal chemical composition

Atsushi Yamazaki, Y. Inoue, M. Koike, T. Sakamoto, R. Otsuka

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    Thomsonite with ideal chemical composition and with an ordered framework structure was synthesised hydrothermally from zeolite Na-A, which was ground to X-ray amorphous, with 0.05 mol dm-3 CaCl2 solution at 200°C. The dehydration behaviour of the prepared thomsonite was examined by TG-DTA. It was revealed that thomsonite lost most of zeolitic water below 450°C in three steps at about 180°, 340° and 390°C. The peak profiles of, the two higher-temperature endotherms were sharp and similar, and the weight loss at each step was approximately equal.

    Original languageEnglish
    Pages (from-to)85-97
    Number of pages13
    JournalJournal of Thermal Analysis
    Issue number1
    Publication statusPublished - 1993 Feb



    • Si andAl NMR
    • dehydration and preparation of thomsonite
    • TG-DTA

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Engineering(all)

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