Amines, C14-16 (even numbered)-alkyldimethyl, N-oxides

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

01/07/2010

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Remarks:

Results from the water solubility study suggest that some degradation of the substance may have taken place during drying.

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: Initially the sample melted and then briefly ignited with an orange flame, which extinguished on removal of the ignition source. No propagation of this reaction was observed

Classification of substance : Not Highly Flammable

Comments

Initially the sample melted and then briefly ignited with an orange flame, which extinguished on removal of the ignition source. No propagation of this reaction was observed.

Interpretation of results:

GHS criteria not met

Description of key information

The substance is not highly flammable based on read-across to category member C12 -14 AO.

Key value for chemical safety assessment

Flammability:

not classified

Additional information

The flammability of C14-16 AO has not been measured directly as experience with other amine oxides has shown that it is not possible to produce a stable and/or water-free sample of these substances by freeze-drying. A study is available for C12-14 AO in which the flammability of a freeze dried sample of the substance was assessed in accordance with the procedure described in EU Regulation (EC) 440/2008, Annex Part A test A10. In the preliminary screening test the sample melted and then briefly ignited with an orange flame, which extinguished on removal of the ignition source. No propagation of this reaction was observed. On this basis the substance is classified as not highly flammable.

It is considered that read across of this result to C14-16 AO is valid is valid due to the large overlap in chain length distribution between the two substances.

The substance is manufactured and placed on the market as an aqueous solution. From experience in use, the substance does not emit flammable gases in contact in water. Also from experience in use, solutions containing the substance are not pyrophoric.

Justification for classification or non-classification

The flammability of C14-16 AO has not been measured directly as experience with other amine oxides has shown that it is not possible to produce a stable and/or water-free sample of these substances by freeze-drying. A study is available for C12-14 AO in which the flammability of a freeze dried sample of the substance was assessed in accordance with the procedure described in EU Regulation (EC) 440/2008, Annex Part A test A10. In the preliminary screening test the sample melted and then briefly ignited with an orange flame, which extinguished on removal of the ignition source. No propagation of this reaction was observed. On this basis the substance is classified as not highly flammable.It is considered that read across of this result to C14-16 AO is valid is valid due to the large overlap in chain length distribution between the two substances.The substance is manufactured and placed on the market as an aqueous solution, therefore classification as a substance that emits flammable gases on contact with water is not required. From experience in use, solutions containing the substance are not pyrophoric. therefore, classification is not required.