Autor: |
MAGDALENA TOMASEVIC-CANOVIC, JOVAN LEMIC, ALEKSANDRA DAKOVIC, VERA DONDUR, ANA RADOSAVLJEVIC-MIHAJLOVIC |
Jazyk: |
angličtina |
Rok vydání: |
2004 |
Předmět: |
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Zdroj: |
Journal of the Serbian Chemical Society, Vol 69, Iss 4, Pp 273-281 (2004) |
Druh dokumentu: |
article |
ISSN: |
0352-5139 |
Popis: |
Samples of natural HEU-type zeolites clinoptilolite-Ca, from the Novakovici deposit (near Prijedor, Bosnia and Herzegovina) were treated with the hydrochloric 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 reduction in the crystallinity of zeolitic tuffs (6070 %), which were effected by hydrochloric acid with concentrations of 1 M and above. |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
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