Abstract

Copper tin sulfide Cu₂SnS₃ (mohite) is the endmember of the binary system Cu₂SnS₃–Me^IIS, in which a number of four-component compounds (known as stannic minerals) are formed; it is also a representative of a large number of solid solutions, some occurring in nature and used in metallurgy and as promising materials for the production of solar cells. The standard enthalpy of mohite formation from covelline (CuS) and herzenbergite (SnS) has been determined: 2CuS + SnS → Cu₂SnS₃, \({{\Delta }_{r}}H_{{{\text{298}}.{\text{15}}\,\,{\text{K}}}}^{^\circ }\)(Cu₂SnS₃) = ‒(51.01 ± 1.26) kJ/mol. The standard enthalpy of Cu₂SnS₃ formation from elements kJ/mol has been calculated using reference data: \({{\Delta }_{f}}H_{{{\text{298}}.{\text{15}}\,\,{\text{K}}}}^{^\circ }\)(Cu₂SnS₃) = –(263.79 ± 2.28).

中文翻译：

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硫化物形成Cu 2 SnS 3（Mohite）的标准焓

摘要

硫化铜锡Cu ₂ SnS ₃（白云母）是二元体系Cu ₂ SnS ₃ -Me ^II S的末端，其中形成许多四组分化合物（称为锡矿）。它也是大量固溶体的代表，其中一些固溶体存在于自然界中，用于冶金，并作为生产太阳能电池的有前途的材料。确定了由鹅卵石（CuS）和黑锌矿（SnS）形成白云母的标准焓：2CuS + SnS→Cu ₂ SnS ₃，\（{{\ Delta __r （r）} H _ {{ }。{\ text {15}} \，\，{\ text {K}}}} ^ {^ \ circ} \）（Cu ₂ SnS ₃）＝ ‒（51.01±1.26）kJ / mol。由元素kJ / mol形成的Cu ₂ SnS ₃的标准焓已使用参考数据计算得出：\（{{\ Delta __ {f}} H _ {{{\ text {298}}。{\ text {15} } \，\，{\ text {K}}}} ^ {^ \ circ} \）（Cu ₂ SnS ₃）= –（263.79±2.28）。