Intermediate phases and products of thermal decomposition of the compound Tl2
Pb[Cu(NO2)6]

Papánková, B.; Kožíšek, J.; Kniep, R.; Blase, W.; Langfelderová, H.

doi:10.1016/0040-6031(92)80286-6

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Intermediate phases and products of thermal decomposition of the compound Tl₂Pb[Cu(NO₂)₆]

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Papánková, B., Kožíšek, J., Kniep, R., Blase, W., & Langfelderová, H. (1992). Intermediate phases and products of thermal decomposition of the compound Tl₂Pb[Cu(NO₂)₆]. Thermochimica Acta, 210, 163-170. doi:10.1016/0040-6031(92)80286-6.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-B8AA-B

Abstract

The stoichiometry of the thermal decomposition of the compound Tl2Pb[Cu(NO2)6] has been studied. It is shown that the composition of the intermediate phases depends on the atmosphere in the reaction space, the composition of the intermediate phases being different when the decomposition is carried out in nitrogen or in air. As intermediate phases produced during decomposition under a nitrogen atmosphere, Cu2O and Pb(NO3)2 were formed at 280-degrees-C. At the same temperature in an air atmosphere there were identified TlNO3, Pb6O5(NO3)2 and Tl5.1PbO9.15 as intermediates. Further heating of this system led to the subsequent crystallization of Tl2O3, CuO and, probably, Tl6Pb2O5 (520-degrees-C). As the final product of the decomposition a mixture of CuO, Tl2O and PbO was identified.