Kundu, Dipali and Roy, S K (1988) A gravimetric method for determination of water in phosphate glasses. Transactions of the Indian Ceramic Society, 47 (5). 147-148, 155. ISSN 0371-750X

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A simple gravimetric method for determination of water in phosphate glass systems has been developed. The method involves a chemical reaction between Al2O3 (used as a releasing agent) and acid phosphate of the glass system at 700° C. The reaction products have been found to be AlPO4 and H2O. The loss in weight due to expulsion of water has been directly measured. The selection of anhydrous Al2O3 as a releasing agent, optimum temperature and time of heating have been established from XRD and DTA. The ratio of releasing agent to sample (5:1) has been found to be adequate for release of water from the matrix. The method has been applied to the determination of water content of various glass systems, e.g. (i) ZnO—P2O5—H2O, (ii) ZnO-CaO-K2O—P2O5—H2O, (iii) MnO—K2O—P2O5—H2O. The results obtained compared favourably with the theoretical values.

Item Type: Article
Subjects: Glass
Depositing User: Bidhan Chaudhuri
Date Deposited: 25 Nov 2013 12:04
Last Modified: 05 Mar 2016 13:17
URI: http://cgcri.csircentral.net/id/eprint/2292

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