Registration Dossier
Registration Dossier
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EC number: 909-709-8 | CAS number: -
Melting point / freezing point
Administrative data
Link to relevant study record(s)
Description of key information
Reaction mass of cerium dioxide and zirconium dioxide presents a melting point superior to 500 °C.
Data on constituents: Cerium dioxide >400°C - Zirconium dioxide: ca. 2700°C
Key value for chemical safety assessment
Additional information
A GLP-compliant study, scored as Klimisch 1 and flagged as a key study, is available on the reaction mass; giving a melting point value superior to 500°C (Demangel, 2010).
An experimental data, scored as Klimisch 2 (Weissenfeld, 2006), and literature information, scored as Klimisch 2 (CRC Handbook, 1991) or 4 (NIEHS, 2006; IRIS-EPA, 2009), are also available on cerium dioxide; giving consistently high melting point values.
Literature information on zirconium dioxide scored as Klimisch 2 (CRC Handbook, 2001 and Merck Index, 2006) also give consistently high melting point values (approx 2700 °C). Data on these constituents were thus selected as supporting studies.
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