Preparation and dehydration behaviour of thomsonite with ideal chemical composition

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

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

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
Volume40
Issue number1
DOIs
Publication statusPublished - 1993 Feb 1

Keywords

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

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Engineering(all)

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