The MLn₂O₄ (M = Ba, Sr and Ln = lanthanides) are being studied recently as a class of frustrated magnetic materials. Solid-state reaction route was used to prepare BaNd₂O₄ compound. The Gibbs energy of formation of BaNd₂O₄ was evaluated by measuring the partial pressures of CO₂ over the equilibrium phase mixture of BaCO₃ and Nd₂O₃. Gibbs energy formation of the compound as a function of temperature is given as: Δ_fG^o_m(BaNd₂O₄, s, kJmol^-1(±7) = -2400 + 0:362 X (T/K) (690 ≤ T/K ≤ 870) The molar heat capacity of the compound was measured using differential scanning calorimeter as a function of temperature and is given as: C^o_p,m(BaNd₂O₄, s, J mol^-1 K^-1) = 164:5 ±  0:04078 x (T/K) - 174,3853/ x (T/K)² (350 ≤ T/K ≤ 1000) Based on these experimental data, thermodynamic functions of this compound were also generated.