ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Determination of the enthalpy of fusion of K3NbO2F4

Ladislav Kosa and Iveta Macková

Institute of Inorganic Chemistry, Slovak Academy of Sciences, SK-845 36 Bratislava, Slovakia

E-mail: uachimac@savba.sk

Abstract: Areas of fusion and crystallization peaks of K₃NbO₂F₄ were measured using the DCS mode of a high-temperature calorimeter (SETARAM 1800 K). On the basis of these quantities, considering the temperature dependence of the calorimeter sensitivity, the value of the fusion enthalpy of K₃NbO₂F₄ of (98 ± 6) kJ mol⁻¹ was determined at the fusion temperature of 1257 K.

Keywords: K3NbO2F4 – enthalpy of fusion – high-temperature calorimeter

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-010-0089-4

Chemical Papers 65 (1) 93–96 (2011)