Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The melting point of cesium chloride was determined to be 642 °C at 1013.25 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
642 °C

Additional information

The determination of the melting point was performed according to EU test method A.1 and OECD Guideline 102 by applying the differential scanning calorimetry (DSC). The heat flow curves of two measurements show a small endothermic phase change between 471 and 474 °C, and upon further heating, a sharp endothermic peak with a peak maximum temperature at 646 °C and an extrapolated onset temperature of 642 °C indicating the melting temperature at ambient pressure. Therefore, the melting point of cesium chloride was determined to be 642 °C at 1013.25 hPA.