Journal of Thermal Analysis and Calorimetry

, Volume 115, Issue 2, pp 1835–1839 | Cite as

Phase diagram study of CaBr2–LiBr system using DTA

  • S. Nagaraj
  • C. V. Vishnuvardhan
  • Sajal Ghosh
  • R. Sridharan


The phase diagram of binary LiBr–CaBr2 system was investigated using differential thermal analysis (DTA) between room temperature and 800 °C. From the DTA results obtained over the entire range of composition from pure LiBr to pure CaBr2 in steps of ~5 mol%, the phase diagram was constructed and is reported here. The results indicated the possible existence of a compound at 50 mol% LiBr, namely, LiCaBr3. The compound undergoes peritectic decomposition at 552 °C. The system shows a eutectic reaction at 532 °C between this compound and LiBr phase, and the eutectic composition is close to 80 mol% LiBr. The compound LiCaBr3 decomposes into CaBr2 and LiBr phases below 272 °C. Co-existing phases in different phase fields are characterized by X-ray diffraction analysis.


CaBr2 LiBr Phase diagram DTA Alkaline earth halide Alkali halide Peritectic 


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2013

Authors and Affiliations

  • S. Nagaraj
    • 1
  • C. V. Vishnuvardhan
    • 1
  • Sajal Ghosh
    • 1
  • R. Sridharan
    • 1
  1. 1.Materials Chemistry DivisionChemistry Group Indira Gandhi Centre for Atomic ResearchKalpakkamIndia

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