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Physical & Chemical properties

Melting point / freezing point

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Description of key information

Terbium trinitrate did not melt over the temperature range tested (-68°C to 600°C).

Key value for chemical safety assessment

Additional information

An experimental study of reliability 1 according to Klimisch, performed in compliance with GLP and according to EU method A.1 and OECD Guideline 102 by Differential Scanning Calorimetry, was selected as a key study.

The DSC curve revealed endothermic peaks at 71.7 °C and 89.5 °C at 97.0 kPa. These endothermic events reflected the fact that the rare earth salt solubilized in its hydration water. No melting behavior was recorded up to 600°C. The endothermic peaks observed from about 320 °C to 500 °C at 97.0 kPa correspond to the decomposition of terbium trinitrate in terbium oxynitrate.