【摘要】 <正> 我国是世界著名的产钨区,钨主要是以黑钨矿(Fe_mMn_1-m)WO₄（0<m<1）的形式产出。目前,已有不少人从地质和地球化学方面研究钨矿床的成因及成矿规律。然而,用化学热力学方法探讨钨矿床形成的物理化学环境的尚少,而这又是研究钨矿床的重要方面之一。用热力学方法去逼近钨矿床形成的物理化学环境的研究工作较少的主要原因,是缺乏矿物的热力学参数。钨铁矿（FeWO₄）和钨锰矿（MnWO₄）的热力学性质已经发表,但黑钨矿更多还原

【Abstract】 The enthalpy of wolframite was experimentally measured at temperatures from 300 K to 1,200 K with drop-down method and a copper-cube calorimeter. The relationship between the heat capacity of wolframite and temperature can be expressed as follows:c_p⁰= 1902.3044-1.17787+3.8800.10^-4T²-3.1241·10⁴T^0.5+ 3.1004.10⁷T^-2（J/mol·K）.An empirical formula to predict the Gibbs standard free energy of formation of tungstates has been established:The following parameters of wolframite: standard free energy of formation △G_f,298.15⁰,entropy S_f,298.15⁰,enthalpy of formation △H_f,298.15⁰, well as the thermodynamical properties at high temperatures have been obtained.更多还原