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:

relative self-ignition temperature (solids)

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:

guideline study with acceptable restrictions

Remarks:

test procedure according to UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria

Cross-reference

Cross-reference 1

Reason / purpose for cross-reference:

reference to same study

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

test procedure in accordance with national standard methods with acceptable restrictions

Remarks:

according to Directive VDI 2263, part 1

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

other: Directive VDI 2263, part 1

Key result

Test procedure:

other: burning index according to VDI 2263

Remarks on result:

other: BZ 3, localized combustion or glowing with practically no spreading

burning index BZ (Brennzahl) 3 was assigned: localized combustion or glowing with practically no spreading..

Due to the fact that no propagation of the combustion was observed the burning rate had not to be determined

Interpretation of results:

not classified based on GHS criteria

Conclusions:

the substance has not to be classified as flammable solid according to Regulation (EC) no 1272/2008.

Cross-reference 2

Reason / purpose for cross-reference:

reference to same study

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

January 23, 2004

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

comparable to guideline study with acceptable restrictions

Remarks:

according to standard operating procedure of testing institute

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Principles of method if other than guideline:

Differential Scanning Calorimetry (DSC)

Type of method:

differential scanning calorimetry

Remarks:

DTA/DSC

Decomposition:

yes

Decomp. temp.:

300 °C

The exothermal (decomposition) reaction shows an onset at approximately 300 °C (taken as decomposition temperature) and a peak at approximately 309 °C in the DSC curve. The decomposition energy is about 130 J/g (mean from 2 measurements).

No discernible endothermal reaction (melting) was seen in the DTA.

Conclusions:

Decomposition starts without discernible melting, the decomposition temperature is 300 °C.

Executive summary:

The DSC shows decomposition starting at 300 °C without discernible melting prior to decomposition.

Cross-reference 3

Reason / purpose for cross-reference:

reference to same study

Reference

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

January 15, 2004

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

comparable to guideline study with acceptable restrictions

Remarks:

Laser diffraction is the well experienced standard procedure for pigments to determine particle size distribution of the substance as it is manufactured and delivered.

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

equivalent or similar to guideline

Guideline:

ISO 13320 (Particle size analysis - Laser diffraction methods)

Type of method:

Laser scattering/diffraction

Type of distribution:

volumetric distribution

Percentile:

D50

Mean:

6.5 µm

St. dev.:

0.85

Percentile:

D10

Mean:

1.6 µm

St. dev.:

0.05

Percentile:

D90

Mean:

29.5 µm

St. dev.:

6.7

Given standard deviation is based on the general experience with pigments and the method. The estimated values are typical standard deviations:

D10: 4 % of D10 (minimum value 0.05 µm)

D50: 13 % of D50 (minimum value 0.1 µm)

D90: 29 % of D90 - D50

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2004

Report date:

2004

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

other: Directive VDI 2263, part 1

Version / remarks:

screening test in the Grewer oven

Test guideline 2

Qualifier:

equivalent or similar to guideline

Guideline:

other: UN Manual of Tests and Criteria, Part III, N.4.

Test material

Test material information

Constituent 1

Reference substance name:

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

EC Number:

911-715-0

Molecular formula:

C34H30Cl2N6O4 // C35H32Cl2N6O4 // C36H34Cl2N6O4

IUPAC Name:

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

Test material form:

solid: nanoform

Results and discussion

Relative self-ignition temperature (solids)

Relative self-ignition temperature (solids) 1

Relative self-ignition temperature:

> 140 °C

Remarks on result:

other: hot storage test

Relative self-ignition temperature (solids) 2

Relative self-ignition temperature:

>= 220 °C

Remarks on result:

preliminary test

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, the main test was carried out . An exothermic reaction was immediately observed upon reaching the storage temperature of 140 °C. The temperature of the sample reached approximately 155 °C. No further self-heating processes were recorded.

Applicant's summary and conclusion

Conclusions:

the substance has not to be classified as self-heating substance according to Regulation (EC) no 1272/2008.

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