Reaction mass of 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide] and 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2-methylphenyl)-3-oxobutyramide] and 2-[[3,3'-dichloro-4'-[[1-[[(2,4-dimethylphenyl)amino]carbonyl]-2-oxopropyl]azo][1,1'-biphenyl]-4-yl]azo]-3-oxo-N-(o-tolyl)butyramide

Auto flammability

Administrative data

Endpoint:

auto-flammability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

January 16 - February 2, 2004

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Guideline study for screening test (reliability 1) and valid method for main test (reliability 2)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2004

Report date:

2004

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: DIN 2263

Principles of method if other than guideline:

Guideline study for screening test (Grewer oven)
Main test: test with higher volume (hot storage test)

Test material

Test material information

Constituent 1

Reference substance name:

2-[[2-chloro-4-[3-chloro-4-[[1-(2,4-dimethylphenylamino)-1,3-dioxobutan- 2-yl]diazenyl]phenyl]phenyl]diazenyl]-N-(2-methylphenyl)-3-oxobutanamide

EC Number:

911-715-0

Molecular formula:

C36H34Cl2N6O4 // C35H32Cl2N6O4 // C34H30Cl2N6O4

IUPAC Name:

2-[[2-chloro-4-[3-chloro-4-[[1-(2,4-dimethylphenylamino)-1,3-dioxobutan- 2-yl]diazenyl]phenyl]phenyl]diazenyl]-N-(2-methylphenyl)-3-oxobutanamide

Constituent 2

Reference substance name:

Pigment Yellow 174

IUPAC Name:

Pigment Yellow 174

Results and discussion

Auto-ignition temperature (liquids / gases)

Auto-ignition temperature:

> 140 °C

Atm. press.:

ca. 1 013 hPa

Remarks on result:

other:

Relative self-ignition temperature (solids)

Relative self-ignition temperature:

> 140 °C

Remarks on result:

other:

Remarks:

at atm. press. of ca.1013.0 hPa

Any other information on results incl. tables

In the screening test according to Grewer, an onset of an exothermic reaction was evident from 220 °C upwards. The maximum temperature of the sample was approximately 500 °C. Therefore, a main test was carried out at lower temperatures. In the main test, an exothermic reaction was immediately observed upon reaching the storage temperature of 140 °C. The temperature of the sample reached approximately 155 °C.

Applicant's summary and conclusion

Conclusions:

On the basis of the results from the screening test and the main test, the test item does not need to be classified according to UN transport regulations.

Executive summary:

Exothermic reactions were evident in the screening test and the main test but the temperatures reached were not sufficient for classification according to UN transport regulations.