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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Flammability

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Administrative data

Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
23 August 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:
other: United Nations Recommendations on the Transport of Dangerous Goods – Manual of Tests and Criteria - Sixth revised edition (2015) – Test N.1 (Part III, Section 33.2.1.4)
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

Flammable solids
Key result
Test procedure:
burning rate test: preliminary screening test
Remarks on result:
substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

Any other information on results incl. tables

Based on the results of the preliminary test, no main test was performed.

Applicant's summary and conclusion

Interpretation of results:
not classified based on GHS criteria
Conclusions:
The flammability of neodymium trihydroxide was investigated according to the UN N.1 test method in compliance with GLP. According to the results of the preliminary test (no ignition, no propagation), the substance does not need to be classified as a flammable solid of Division 4.1 and is not assigned to any packing group.