2-Methoxy-4-methylphenyl methyl carbonate

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

09-01-2012 to 12-01-2012

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline study performed under GLP. All relevant validity criteria were met.

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Version / remarks:

preliminary screening test

Deviations:

no

Qualifier:

equivalent or similar to guideline

Guideline:

UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)

Version / remarks:

preliminary screening test

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

inspected: July 2011; signature: August 2011

Test procedure:

burning rate test: preliminary screening test

Burning time:

> 2 min

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 failed to ignite during the 2 minutes that the Bunsen flame was applied. The result of the preliminary screening test obviated the need to perform the main test.

Interpretation of results:

GHS criteria not met

Conclusions:

The flammability solids: properties of the test item has been determined in a preliminary screening test. No ignition was observed during contact with a flame for 2 minutes. The test item was determined to be not a flammable solid.

Executive summary:

The flammability of the test item was examined using the EU Method A.10: Flammability (Solids) preliminary screening test under GLP. The flammability was determined by measuring the burning rate of the test item by placing the test item in a mould (250 mm long by 20 mm wide by 10 mm high). A non-combustible, non-porous board was placed onto the mould which was then inverted. The mould was removed and an air-rich Bunsen burner flame applied to one end of the pile for two minutes. The pile failed to ignite during the 2 minutes that the Bunsen flame was applied. The result of the preliminary screening test obviated the need to perform the main test. Under the conditions of this study, the test item was not considered to be highly flammable.

Applicant assessment indicates that: the classification of flammable solid does not apply (not highly flammable) in a method consistent with the UN Test N.1 preliminary screening test. The test item did not ignite and there was no combustion propagation. For these reasons further testing to UN Test N.1 according to the full wetted zone and burning rate test is not required. The test item is not a flammable solid or a readily combustible solid.

Reference 2

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 organic substance does not contain metals or metalloids and hence, the classification procedure does not need to be applied

other:

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
In accordance with section 1 of REACH Regulation (EC) No. 1907/2006 Annex XI, the does not need to be performed as based on assessment of the chemical structure flammability on contact with water properties are not to be expected and this is supported by experience in handling and use for the substance. According to ECHA Guidance on Information Requirements and Chemical Safety Assessment (Chapter R.7a: Endpoint Specific Guidance, R.7.1.10.8, July 2017), flammability on contact with water testing is scientifically unjustified.

Reference 3

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

other:

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
In accordance with section 1 of REACH Regulation (EC) No. 1907/2006 Annex XI, the study does not need to be performed as based on assessment of the chemical structure pyrophoric properties are not to be expected and this is supported by experience in handling and use for the substance. According to ECHA Guidance on Information Requirements and Chemical Safety Assessment (Chapter R.7a: Endpoint Specific Guidance, R.7.1.10.5, July 2017), pyrophoricity testing is scientifically unjustified.

Description of key information

Flammability: not a flammable solid ; experimentally determined in preliminary screening test (did not ignite over two minutes of ignition/flame application), EU Method A.10, 2012

Key value for chemical safety assessment

Flammability:

not classified

Additional information

In accordance with section 1.2 of REACH Regulation (EC) No. 1907/2006 Annex XI further study of flammability does not need to be completed based on weight of available evidence and structural assessment along with experience of handling and use.

 

The flammability of the test item was examined using the EU Method A.10: Flammability (Solids) preliminary screening test. The flammability was determined by measuring the burning rate of the test item by placing the test item in a mould (250 mm long by 20 mm wide by 10 mm high). A non-combustible, non-porous board was placed onto the mould which was then inverted. The mould was removed and an air-rich Bunsen burner flame applied to one end of the pile for two minutes. The pile failed to ignite during the 2 minutes that the Bunsen flame was applied. The result of the preliminary screening test obviated the need to perform the main test. Under the conditions of this study, the test item was not considered to be highly flammable. Applicant assessment indicates that: the classification of flammable solid does not apply (not highly flammable) in a method consistent with the UN Test N.1 preliminary screening test. The test item did not ignite and there was no combustion propagation. For these reasons further testing to UN Test N.1 according to the full wetted zone and burning rate test, is not required. The test item is not a flammable solid or a readily combustible solid.

 

Other measures of flammability include pyrophoricity and flammability on contact with water. These can be considered not a concern for the substance and testing waived if consideration of the structure and experience in handling and use show that no effects are envisaged. Such a screening procedure represents an intelligent testing strategy for flammability. If applied correctly then only liquid substances for which it is suspected will give a positive result in either the pyrophoric properties or flammability on contact with water tests need to be tested.

 

A review of the structure suggests that there are no chemical groups present that would imply pyrophoric properties or flammability on contact with water. A review of handling and used implies no pyrophoric properties or flammability on contact with water. Based on the absence of structural alerts and experience in handling and use negative results are predicted for pyrophoric properties and flammability of contact with water. Based on the preliminary screening tests for solids flammability, the substance is not considered to be flammable.

 

References:

1. UN Transport of Dangerous Goods Manual of Tests and Criteria, Sixth Edition (2015)

2. Bretherick (1999) Bretherick’s Handbook of Chemical Reactive Hazards: An Indexed Guide to Published Data, 6th Edition (2 volume set).

3. ECHA Guidance on Information Requirements and Chemical Safety Assessment (Chapter R.7a: Endpoint Specific Guidance, R.7.1.10, July 2017)

4. REACH Regulation (EC) 1907/2006, Annex XI, section 1

5. CLP Regulation (EC) 1272/2008, Annex I, section 2.6 and 2.7

6. ECHA Guidance on Application on the CLP Criteria, section 2.6 and 2.7 (v4.1, July 2017)

Justification for classification or non-classification

The substance does not meet classification criteria under Regulation (EC) No 1272/2008 for flammability.