Thermodynamic properties of the NdBr3–MBr binary systems (M = Na, K)

Thermodynamic properties of the NdBr3–MBr binary systems (M = Na, K)

Phase equilibria in the NdBr 3 –MBr binary systems (M = Na, K) were established by differential scanning calorimetry. The system with NaBr is a simple eutectic system with two compounds that decompose in the solid state (NaNdBr 4 at 603 K and Na 3 NdBr 6 at 580 K). In the system with KBr, three stoi...

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Veröffentlicht in:Journal of thermal analysis and calorimetry 2018-09, Vol.133 (3), p.1589-1596
Hauptverfasser: Bounouri, Yassine, Berkani, Madjid, Zamouche, Abdelmalek, Dańczak, Anna, Chojnacka, Ida, Rycerz, Leszek
Format: Artikel
Sprache:eng
Schlagworte:
Analytical Chemistry
Binary systems
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Measurement Science and Instrumentation
Melts
Phase equilibria
Physical Chemistry
Polymer Sciences
Potassium bromides
Thermodynamic properties
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Zusammenfassung:Phase equilibria in the NdBr 3 –MBr binary systems (M = Na, K) were established by differential scanning calorimetry. The system with NaBr is a simple eutectic system with two compounds that decompose in the solid state (NaNdBr 4 at 603 K and Na 3 NdBr 6 at 580 K). In the system with KBr, three stoichiometric compounds exist. First (K 3 NdBr 6 ) is formed from KBr and K 2 NdBr 5 at 680 K and melts congruently at 918 K. Second (KNd 2 Br 7 ) melts congruently at 814 K. Third compound (K 2 NdBr 5 ) melts incongruently at 822 K.
ISSN:1388-6150
1588-2926
DOI:10.1007/s10973-018-7180-4