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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Boiling point

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boiling point
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is a solid which melts above 300°C
boiling point
Type of information:
not specified
Adequacy of study:
supporting study
Study period:
not specified
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Data from SDS of manufacturer. Original source not available.
Principles of method if other than guideline:
No data (original source not available).
GLP compliance:
not specified
Type of method:
other: no data
Boiling pt.:
ca. 3 800 °C
The boiling point was reported to be ca. 3800°C. The original source is not available.

Description of key information

No key information is available on the boiling point of magnesium zirconium oxide. Data from the safety data sheet of a manufacturer showed the substance to have a boiling point of ca. 3800°C (Imerys, 2015). This data can be considered as supportive evidence. No tests need to be performed as the substance is a solid which melts above 300°C (Column 2, REACH Annex VII).

Key value for chemical safety assessment

Additional information