The heat of formation of 3CaO· Al2O3 ·CaCO3·10.68H2O at 25 °C was determined by the heat-of-solution method, with 2N HCI as the solvent and 3CaO·Al2O3·6H2O and CaCO3 as the reactants. The heat of solution of CaCO3, to form dissolved CO2, was obtained by a new technique and a modified calculation which served to include the heat of vaporization of the gas escaping in the reaction and resulted in a higher value than those obtained by Wells and Taylor and by Backstrom in determinations representing only partial solution of CO2. The results obtained were: [table].
CITATION STYLE
Berman, H. A. (1965). Heat of formation of calcium aluminate tricarbonate at 25 °C. Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 69A(5), 407. https://doi.org/10.6028/jres.069a.043
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