Rice straw ash as a raw material for glass production
Ashes produced from rice straw and husk originating from the Nile delta can be used to produce high quality glasses. Washed quartz powder and different types of ash were used to produce Na2O–SiO2 and Na2O–CaO–Al2O3–SiO2 glasses. Ash constituents were explored using EDAX. Both straw and husk ashes have appreciable silica contents in addition to various oxides that are quite useful in glass production. Colourless or coloured glasses can be obtained, depending on the type of ash. Physical properties such as density, Vickers hardness, electric conduction and transmission in the ultraviolet-vis and infrared regions were investigated. Differences in properties between the glasses obtained by using quartz powder and ash are correlated with the ash composition.
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Document Type: Research Article
Publication date: August 1, 2009