Measurements of the heat capacity of lithium carbonate were carried out with a heat conduction calorimeter in the temperature range of 303.15-563.15 K at atmospheric pressure. The temperature dependence of the heat capacity is C-p (J mol(-1) K-1) = 92.80 + 0.09T - 1.91 x 10(6)T(-2). The thermodynamic functions with reference temperature 298.15 K, calculated in the same temperature range are: H-T - H-298 (kJ mol(-1)) = -48.92 + 0.14T + 6.68 x 10(5)T(-2), S-T -S-298 (J mol(-1) K-1) = -53.73 + 0.24T - 1.55 x 10(6)T(-2). (C) 2006 Elsevier B.V. All rights reserved.