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

Auto flammability

Administrative data

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1999-2000

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

test procedure in accordance with national standard methods with acceptable restrictions

Remarks:

equivalent or similiar to Directive VDI 2263, part 1, limited documentation

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2000

Report date:

2000

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

other: Directive VDI 2263, part 1

Principles of method if other than guideline:

1) Screening test according to Grewer
2) Test with higher volume (hot storage test)

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-(2-methoxyphenyl)-3-oxobutyramide]

EC Number:

224-867-1

EC Name:

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

Cas Number:

4531-49-1

Molecular formula:

C34H30Cl2N6O6

IUPAC Name:

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

Test material form:

solid: nanoform

Results and discussion

Relative self-ignition temperature (solids)

Relative self-ignition temperature:

>= 280 °C

Any other information on results incl. tables

In the screening test according to Grewer slow self-heating was observed at an onset temperature of 280°C. Above 400°C, strong self-heating was recorded leading to open fire.

Due to the results of the screening test no further testing is required.

Although the substance has not be classified as self-heating substance according to Regulation (EC) 1272/2008, for reasons of process safety (e.g. drying conditions during manufacturing process) a hot storage test using a 1 L mesh wire basket (260 g test item) was conducted at 200°C. After 2,2 hours the test item temperature was adapted to 200°C following by a temperature raise to the maximum temperature of 232°C afte further 57 min. Then, the test item cooled down to 200°C after about 8 hours and kept this temperature for the entire duration of the test (64 hours).

Applicant's summary and conclusion

Conclusions:

The substance has not to be classified as self-heating substance according to Regulation (EC) 1272/2008