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Physical & Chemical properties

Flammability

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Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
17 August 2001 to 25 August 2001
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.10 (Flammability (Solids))
Deviations:
no
GLP compliance:
yes (incl. certificate)
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

Preliminary screening test

The pile ignited but self-extinguished one second after the Bunsen flame was removed without propagating combustion. The result of the preliminary test obviated the need to perform the main test.

Moisture content

   Determination A  Determination B
 a) mass of loss bottle (g)  20.9266  21.1209
 b) mass of loss bottle and test material  21.9278  22.1214
 c) mass of loss bottle and test material after drying (g)  21.9226  22.1159
 moisture content (% w/w)  0.519  0.550
 mean moisture content (% w/w)  0.535   
Interpretation of results:
GHS criteria not met
Conclusions:
Under the conditions of the test, the test material was determined to be not highly flammable.
Executive summary:

In a GLP compliant flammability study conducted in accordance with standardised guideline EU Method A.10, the flammability of the test material was determined. Under the conditions of the study, the test material was determined to be not highly flammable.

Endpoint:
substances / mixtures which in contact with water emit flammable gases
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water
Justification for type of information:
JUSTIFICATION FOR DATA WAIVING
In accordance with Section 1 of Annex XI of Regulation (EC) No. 1907/2006 (REACH), it is considered justified to omit the Flammability (Contact with Water) study required under section 7.10 of Annex VII, on the basis that the testing does not appear to be scientifically necessary.  The chemical structure of the test material contains no groups which would indicate potential reactivity with water and in addition, experience of handling the material and the known chemical and physical properties of the substance suggest that it is not flammable in contact with water.
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
Justification for type of information:
JUSTIFICATION FOR DATA WAIVING
In accordance with Section 1 of Annex XI of Regulation (EC) No. 1907/2006 (REACH), it is considered justified to omit the Pyrophoric Properties of Solids and Liquids study, required under section 7.10 of Annex VII, on the basis that the testing does not appear to be scientifically necessary. The chemical structure of the test material contains no groups which would indicate potential pyrophoric properties. In addition, experience of handling the material and the known chemical and physical properties of the substance suggest that it is not pyrophoric.

Description of key information

The test material was determined to be not highly flammable according to a study performed in line with EU Method A.10.

Based on the known chemical and physical properties of the substance and its chemical structure, negative results are predicted for the following flammability tests of Commission Directive 92/69/EEC, so it is considered justified to omit them;

Method A12: Flammability (contact with water)

Method A13: Pyrophoric properties of solids and liquids.

Key value for chemical safety assessment

Flammability:
non flammable

Additional information

The key study (Tremain, 2001) was performed in line with GLP and a standardised guideline with a sufficient level of detail to assess the quality of the study. The study was performed to a good standard and was assigned a reliability score of 1 using the principle for assessing data quality as set out in Klimisch (1997).

Justification for classification or non-classification

In accordance with the criteria for classification as defined in Annex I, Regulation (EC) No 1272/2008, the substance does not require classification with respect to flammability.