ISSN 4391-3199
African Journal of Chemistry ISSN 4391-3199 Vol. 4 (1), pp. 228-230, January, 2017. © International Scholars Journals
Full Length Research Pape
Integration of volcanic tuffs as raw material in the preparation of industrial glass that uses feldspar
Rafael Jordán Hernández1, Tania Faría Piñera1, Gerardo Rodríguez- Fuentes1, Gerardo C. Díaz Trujillo2 and María E. Zayas Saucedo3
1Zeolites Engineering Laboratory, Institute of Science and Technology of the Materials, Havana University, Cuba.
2Chemistry Faculty, Baja California, México.
3Physics Faculty, Sonora University, México.
Accepted 22 April, 2016
Abstract
The present work shows a study to incorporate volcanic tuffs as raw material in the preparation of industrial glass that traditionally uses feldspar. The X- ray diffraction patterns obtained with hot camera depict an unstable mineralogical phase under special conditions of atmospheric pressure in which appears the quartz polymorphic transformation. Thermal analysis curves present a shoulder at 680oC and an endothermic peak around 840oC corresponding to reactions of formation of silicates. It suffers an overlapping effect toward smaller temperatures favouring glass formation.
Keywords: Glass, volcanic tuff, endothermic peaks.