Abstract
The melting of PbBr2 in sealed crucibles was investigated by means of DSC. Three factors were considered to affect melting point: i) impurities, ii) the bromine pressure over the PbBr2, and iii) photolysis. Both crystals and powders were investigated. The peak of the melting changed after sample grinding. The bromine pressure over the PbBr2 was found to cause a significant error in the determination of the melting point.
Lead bromide melts at 370.6±0.2°C. The heat of melting is 42.9±1.8 J g−1.
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Distanov, V.E., Drebushchak, V.A. Melting of PbBr2: A DSC investigation. Journal of Thermal Analysis and Calorimetry 57, 599–605 (1999). https://doi.org/10.1023/A:1010105100283
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DOI: https://doi.org/10.1023/A:1010105100283