Physicochemical and structural characteristics of HEU-type zeolitic tuff treated by hydrochloric acid | Zendy

Ana Radosavljević-Mihajlović | Zendy; V. Dondur | Zendy; Aleksandra Daković | Zendy; Jovan Lemić | Zendy; Magdalena Tomašević-Čanović | Zendy

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Physicochemical and structural characteristics of HEU-type zeolitic tuff treated by hydrochloric acid

Author(s) -

Ana Radosavljević-Mihajlović,

V. Dondur,

Aleksandra Daković,

Jovan Lemić,

Magdalena Tomašević-Čanović

Publication year - 2004

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc0404273r

Subject(s) - hydrochloric acid , clinoptilolite , crystallinity , chemistry , nuclear chemistry , inorganic chemistry , zeolite , organic chemistry , catalysis , crystallography

Samples of natural HEU-type zeolites - clinoptilolite-Ca, from the Nova- kovici deposit (near Prijedor, Bosnia and Herzegovina) were treated with the hydro- chloric acid of various concentrations (from 10 -3 M to 2 M). Zeolitic tuffs before and after the acid treatment were examined using IR, XRPD, and chemical analyses. The changes in the crystal structure of acid treated samples showed a significant reduc- tion in the crystallinity of zeolitic tuffs (60-70 %), which were effected by hydro- chloric acid with concentrations of 1 M and above.

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