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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Test O.1 (Test for oxidizing solids)
Version / remarks:
2015
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
4-[3-(3,5-dichloro-4-fluorophenyl)-4,4,4-trifluorobut-2-enoyl]-N-(2-ethyl-3-oxo-1,2-oxazolidin-4-yl)-2-methylbenzamide
Molecular formula:
C23H18Cl2F4N2O4
IUPAC Name:
4-[3-(3,5-dichloro-4-fluorophenyl)-4,4,4-trifluorobut-2-enoyl]-N-(2-ethyl-3-oxo-1,2-oxazolidin-4-yl)-2-methylbenzamide
Test material form:
solid
Details on test material:
Off-white

Study design

Contact with:
powdered cellulose
Duration of test (contact time):
3 min

Results and discussion

Test results (Oxidising solids)open allclose all
Key result
Sample tested:
4:1 sample-to-cellulose ratio
Parameter:
mean burning time
Result:
221 s
Key result
Sample tested:
1:1 sample-to-cellulose ratio
Parameter:
mean burning time
Result:
202 s
Key result
Sample tested:
reference: 3:7 mixture potassium bromate + cellulose
Parameter:
mean burning time
Result:
78 s

Any other information on results incl. tables

Applied power to the ignition coil: 150 ± 7 W. In all cases, the test mixtures ignited and burned fully with a flame.The mean burning times of the 4:1 and 1:1 mixtures of the test substance with cellulose were both much greater than the mean burning time 3:7 mixture of the reference potassium borate with cellulose. The substance is not considered to be an oxidising solid.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The mean burning times of the test substance/cellulose mixtures are both much greater than the mean burning time of the potassium bromate/cellulose mixtures.
Executive summary:

The oxidising properties of the substance were studied under GLP in accordance with UN Test O.1.

The substance was ground and sieved to particle size equal to or less than 500 µm and mixed with dry fibrous cellulose in ratios of 1:1 and 4:1, by mass, of sample to cellulose. The burning characteristics of the mixtures were compared with a standard 3:7 reference mixture, by mass, of potassium bromate to cellulose. Each test mixture was formed into a conical pile of base diameter 70 mm, covering a looped ignition wire resting on a low heat conducting base plate. Electrical power was applied to the ignition wire until the end of the test because the mixtures showed signs of ignition. The 4:1 mixtures smouldered before igniting and burning with a small flame and continued to fume after the flames had extinguished following incomplete combustion; the 1:1 mixtures ignited and burned with a flame, but combustion was incomplete in three of five tested mixtures. The burning time was recorded from the initial application of power to the wire until the end of the main reaction. The mean burning time from five evaluations was as follows:

- 221 seconds for 4:1 mixtures (test substance:cellulose)

- 202 seconds for 1:1 mixtures (test substance:cellulose)

- 78 seconds for 3:7 mixtures (reference:cellulose)

The mean burning times of the mixtures of test substance with cellulose were much greater than those of the potassium borate/cellulose mixtures. In accordance with the criteria of UN Test O.1, the substance was not considered to be an oxidising solid.