2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(4-methylphenyl)-3-oxobutyramide]

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Administrative data

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

18 August - 23 September 2009

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Study performed according to EU test method and DIN guideline

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2009

Report date:

2009

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.16 (Relative Self-Ignition Temperature for Solids)

Test guideline 2

Qualifier:

according to guideline

Guideline:

other: DIN 2263, sheet 1

Test material

Test material information

Constituent 1

Reference substance name:

2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(4-methylphenyl)-3-oxobutyramide]

EC Number:

228-771-0

EC Name:

2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(4-methylphenyl)-3-oxobutyramide]

Cas Number:

6358-37-8

Molecular formula:

C34H30Cl2N6O4

IUPAC Name:

2,2'-[(3,3'-dichlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis[N-(4-methylphenyl)-3-oxobutanamide]

Results and discussion

Relative self-ignition temperature (solids)

Relative self-ignition temperature:

420 °C

Remarks on result:

other:

Remarks:

at atm. press. of ca.1013.0 hPa

Any other information on results incl. tables

The test item shows one small exothermic effect in the temperature range of about 310 -340 °C. This effect led only to a minor increase of the temperature. A second exothermic process started at a temperature of approximately 420 °C and led to final temperature of > 450 °C.

After the test, the wire basket was empty. Therefore, it can be concluded that the test item melted during the first self-igntion process and flowed out of the wire-basket. This limited the observed self-ignition considerably. The second self-ignition process can be ascribed to residues which have remained in the basket.

The test item did not show any seif-ignition process which led to a temperature of 400 °C during the heat up process of the oven up to 400 °C. Hence, the test item posesses no self-igntion temperature in the sense of the European Commission Regulation (EC) 440/2008, Appendix, Part A, A.16.

The test item exhibited a weak exothermic process at a temperature of 310 °C and a stronger exothermic process at a temperature of 420 °C. The former process is too weak so that it is not considered as a self-igntion. The latter process leads to an obvious temperature increase. This process must be considerd as a self-igntion. Thus, the test item shows a self-ignition at 420 °C in the sense of the guideline VDI 2263, sheet 1.

Applicant's summary and conclusion

Conclusions:

The test item posesses no self-ignition temperature in the sense of the European Commission Regulation (EC) 440/2008, Appendix, Part A, A.16. and a self-ignition temperature of 420 °C in the sense of the guideline VDI 2263, sheet 1.

Executive summary:

Self-ignition of the test substance was examined in a study according to EU test method A.16 and DIN guideline 2263. No self-ignition temperature in the sense of the European Commission Regulation (EC) 440/2008, Appendix, Part A, A.16 could be observed, while a self-ignition temperature of 420 °C in the sense of the guideline VDI 2263, sheet 1 could be determined.