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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Endpoint:
substances / mixtures which in contact with water emit flammable gases
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Endpoint:
pyrophoric solids
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied
Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP-Guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.10 (Flammability (Solids))
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Test procedure:
burning time (test type not further specified)
Remarks:
or specified in description of method (migrated information)
Remarks on result:
other: The test item could not be ignited with a flame. The test item melted. A main test was therefore not necessary.

The test item is not a highly flammable solid in the sense of the consolidated version of Council Directive 67/548/EEC Annex V (Council Directive 92/69/EEC).

Interpretation of results:
non flammable
Endpoint:
self-heating substances / mixtures
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Test N.4 (Test method for self-heating substances)
GLP compliance:
yes (incl. QA statement)
Test procedure:
100 mm sample cube at 140°C
Max. temp. reached:
143
Result:
negative outcome (no effect observed)

Individual Results

Determination of the Dry Content

The residual moisture of the test item after 8 h was determined to 0.22 wt.% (dry content: 99.8 wt.%),

after 52 h: 0.30 wt.% mass lost and after 56 h: 0.32 wt.% mass lost. No further increase of the

residual moisture was observed after an additional drying time of 63 h (total drying time: 119 h). The

dry content remained constant at 99.7 wt.%.

 

UN-Test. N.4: Bowes - Cameron - Cage Test

Test in the 10cm cube sample at an oven temperature of 140 °C

A slight exothermal reaction of the test item occurred at a temperature of 140 °C and led to a

maximum temperature of 143 °C.

The temperature of the test item did not exceed 200 °C during the whole test.

The test item is not classified in Division 4.2 according to UM-RTDG (a negative result was obtained in the test using a 10 cm cube sample at 140 °C).

Description of key information

Non flammable (EU Method A.10)
The substance has no pyrophoric properties and does not liberate flammable gases in dangerous quantities on contact with water.

The substance is not self-heating (UN MTC N.4).

Key value for chemical safety assessment

Flammability:
not classified

Additional information

Non flammable solid ( Flammability (Solids) A.10.): The test item could not be ignited with a flame. The test item melted.

Based on chemical structure and experience in handling and use pyrophoric properties are not to be expected and the substance does not liberate flammable gases in dangerous quantities on contact with water.

The substance is not self-heating, the maximum temperature reached in the Bowes-Cameron cage test was 143 °C.

Justification for classification or non-classification

The available data on flammability of the test substance do not meet the criteria for classification according to Regulation (EC) 1272/2008 and are therefore conclusive but not sufficient for classification:

The substance is a non flammable solid.

Based on the chemical structure and on experience in handling and use, pyrophoricity and flammability on contact with water are not expected.

The substance is not self-heating according to UN MTC N.4)