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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
14-16/11/2017
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Trizirconium monoxide
Molecular formula:
Zr3O
IUPAC Name:
Trizirconium monoxide
Constituent 2
Chemical structure
Reference substance name:
Zirconium dioxide
EC Number:
215-227-2
EC Name:
Zirconium dioxide
Cas Number:
1314-23-4
Molecular formula:
O2Zr
IUPAC Name:
Zirconium dioxide
impurity 1
Chemical structure
Reference substance name:
Hafnium
EC Number:
231-166-4
EC Name:
Hafnium
Cas Number:
7440-58-6
Molecular formula:
Hf
IUPAC Name:
Hafnium
Test material form:
solid: bulk

Results and discussion

Relative self-ignition temperature (solids)
Key result
Relative self-ignition temperature:
> 500 °C
Remarks on result:
no self ignition observed under the test conditions

Applicant's summary and conclusion

Conclusions:
Heating the test substance to 500 °C in air shows no exothermic reactions. We can therefore conclude that this material does not present any auto-ignition risks in air up to 500°C.
Executive summary:

TGA/DSC measurements were performed on the test substance.

Heating the test substance to 500 °C in air shows no exothermic reactions. We can therefore conclude that this material does not present any auto-ignition risks in air up to 500°C.