ISSN:
1572-8943
Keywords:
complexes
;
zeolite
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract A new zeolite derivative has been prepared by interacting Th(IV) and complexone in HCl medium and neutralising with aqueous ammonia. The amorphous and siliceous derivative showed a total mass loss of 29.25% in TG for stepwise dehydration, dehydroxylation and decomposition. Heats of reaction were 1167.6 J g−1 at 88.7°C and 75.167 J g−1 at 492.5°C for loss of volatile components and decomposition respectively.29Si and27Al MAS NMR spectra as well as XRD data of the derivative before and after calcination indicate presence of both four-coordinated and six-coordinated Al in varying ratios and the total loss of crystallinity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01981821
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