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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
27-30 September 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Neodymium trihydroxide
EC Number:
240-514-4
EC Name:
Neodymium trihydroxide
Cas Number:
16469-17-3
Molecular formula:
H3NdO3
IUPAC Name:
neodymium trihydroxide
Test material form:
solid: particulate/powder
Details on test material:
- Name of test material (as cited in study report): neodymium trihydroxide
- Physical state: solid
- Appearance: clear blue powder (purple under UV light)

Results and discussion

Relative self-ignition temperature (solids)
Key result
Remarks on result:
no self-ignition observed up to the melting point
Remarks:
(up to 400°C)

Any other information on results incl. tables

At the start of the test, the test item was a pale blue powder.

At the end of the test, the cube was full of a very pale blue powder.

The temperature of the test item sample followed the temperature of the oven up to the highest oven temperature reached (400°C).

Similar observations were made in the two assays.

Applicant's summary and conclusion

Conclusions:
The self ignition temperature of neodymium trihydroxide was investigated according to the EU A.16 method in compliance with GLP. No self ignition temperature was observed up to 400°C (corrected value). The temperature of the test sample did not deviate from the oven temperature.