A study of Pakistani mica. | [Pakistan journal of scientific research • 1967]

Author(s):

1. Khawaja Salah-Ud-Din: University Institute of Chemistry, University of Punjab, Lahore, West-Pakistan

2. M. D. Shaw: University Institute of Chemistry, University of Punjab, Lahore, West-Pakistan

3. A. H. Dilawari: University Institute of Chemistry, University of Punjab, Lahore, West-Pakistan

Abstract:

Chemical analysis, flame-photometry and differential thermal analysis of a Pakistani mica have been carried out. Grinding and dehydration properties have been studied. Efforts have been made to convert mica particles into sheets to be used as electrical insulators. Attempts have also been made to utilise mica waste for the production of porous silica which can be employed as an absorbent and a thermal insulator. The investigation reveals the identification of mica as muscovite which can be suitably used as an electrical insulator. The dehydration studies show that the mica can be safely used for electrical insulation at temperatures below 400C as its electrical properties are destroyed due to the partial elimination of water of crystallization at higher temperatures. The porous silica has been successfully prepared and tested for its thermal efficiency which is found to be about 84%.

Page(s): 146-156

DOI: DOI not available

Published: Journal: Pakistan journal of scientific research, Volume: 19, Issue: 4, Year: 1967

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