Registration Dossier

Physical & Chemical properties

Melting point / freezing point

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

A defined melting point cannot be stated because of decomposition of neodymium carbonate starting at temperatures > 300 °C.

Key value for chemical safety assessment

Additional information

During the course of the experiment, neodymium carbonate began to decompose at approximately 300 °C. Heating caused the substance to change colour from light purple to light blue at approximately 580 °C. The decomposed test item (authors theorized this was neodymium oxide) didn't melt up to 1100 °C.

A defined melting point cannot be stated because of decomposition of neodymium carbonate starting at temperatures > 300 °C.