Roy, A K and Sircar, N R (1982) A study of the clay-phosphoric acid system by thermal analysis. Transactions of the Indian Ceramic Society, 41 (4). pp. 101-104. ISSN 0371-750X

[img] PDF - Published Version
Restricted to Registered users only

Download (309Kb) | Request a copy


Thermal analyses of clay-H3PO4 system were studied in view of beneficial effect of clay in phosphate bond by way of increasing workability and reducing the moisture sensitivity. The various properties of clay and H3PO4 were taken to obtain P2O5/A12O3 molar ratios from 0.5 to 3.0. The results of thermal analyses show that the clay attacks phosphoric acid at as low as 200°-220°C and the product depends upon the P2O5/A12O3 ratios and the temperature of reaction. The A1(H2PO4)3, A12(H2P2O7)3, A1(PO3)3, A1(PO4) and silico-phosphates are the major products. With the higher concentration of P2O5 there is a tendency to form silico-phosphates. © 1982 Taylor & Francis Group, LLC.

Item Type: Article
Additional Information: cited By 1
Subjects: Structural Clay Products
Depositing User: Bidhan Chaudhuri
Date Deposited: 24 May 2016 06:38
Last Modified: 24 May 2016 06:38

Actions (login required)

View Item View Item