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Administrative data

Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
05 October 2017 - 20 November 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Test O.3 (Gravimetric test for oxidizing solids)
Deviations:
yes
Remarks:
Reference item purity is 79.1% in CaO2 instead of 75% ± 0.5%. For test item/cellulose mixture 4:1, the relative SD was >10%. Given the mean burning time of the mixtures, these deviations did not affect the quality or interpretation of the test results.
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Yttrium trifluoride
EC Number:
237-257-5
EC Name:
Yttrium trifluoride
Cas Number:
13709-49-4
Molecular formula:
YF3
IUPAC Name:
yttrium trifluoride
Test material form:
solid: particulate/powder
Details on test material:
- Name of test material (as cited in study report): yttrium trifluoride
- Physical state: solid
- Appearance: white powder
- Further information on test material confidential.

Study design

Contact with:
powdered cellulose

Results and discussion

Test results (Oxidising solids)open allclose all
Key result
Sample tested:
1:1 sample-to-cellulose ratio
Parameter:
burning rate
Result:
0.029 g/s
Remarks on result:
other: Ignition and combustion with smokes were observed.
Key result
Sample tested:
4:1 sample-to-cellulose ratio
Parameter:
burning rate
Result:
0.03 g/s
Remarks on result:
other: Ignition and combustion with smokes were observed.
Sample tested:
reference: 1:2 mixture calcium peroxide + cellulose
Parameter:
burning rate
Result:
0.242 g/s
Remarks on result:
other: The mixture ignited, combustion was observed with smokes, sparks and projections.

Any other information on results incl. tables

The mean burning rates of reaction with the test item / cellulose mixture in proportions 4:1 or 1:1 were lower than the mean burning rate of reaction with the reference item / cellulose mixture in proportion 1:2.

Therefore, the test item was not considered as an oxidising solid following GHS terminology and was not classified in Division 5.1 and thus was not assigned to any packing group following the “UN Recommendations on the Transport of Dangerous Goods - Manual of Tests and Criteria”.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The oxidising properties of yttrium trifluoride were investigated according to the UN O.3 test method in compliance with GLP. The mean burning rates of reaction with the test item / cellulose mixture in proportions 4:1 or 1:1 were lower than the mean burning rate of reaction with the reference item / cellulose mixture in proportion 1:2. Therefore, the test item is not considered to be an oxidising solid following GHS terminology and is not classified in Division 5.1 and thus was not assigned to any packing group following the “UN Recommendations on the Transport of Dangerous Goods - Manual of Tests and Criteria”.