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

Flammability

Administrative data

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:

standard operating procedure of test institute, equivalent to Directive VDI 2263, part 1

Cross-reference

Cross-reference 1

Reason / purpose for cross-reference:

reference to same study

Reference

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

March 29, 1999

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Remarks:

according to UN test N.4., but limited documentation

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

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

Qualifier:

equivalent or similar to guideline

Guideline:

other: Directive VDI 2263, part 1

Relative self-ignition temperature:

>= 210 °C

Remarks on result:

preliminary test

Remarks:

screening test according to Grewer

Key result

Relative self-ignition temperature:

> 140 °C

Remarks on result:

no self ignition observed under the test conditions

Remarks:

UN test N.4, 60 hour test period

In the screening test, the test item showed heating from 210°C onwards in the Grewer oven.

UN test N.4.: Testing revealed sample heating of less than 10 K over the 60 hour test period.

Conclusions:

Based on the results of the UN test N.4. the substance has not to be classified as self-heating substance according to Regulation (EC) No 1272/2008.

Cross-reference 2

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:

March 29, 1999

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

comparable to guideline study with acceptable restrictions

Remarks:

according to standard operating procedure of test insttitute

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:

Malvern laser diffraction

Type of method:

Laser scattering/diffraction

Type of distribution:

volumetric distribution

Percentile:

D50

Mean:

3.5 µm

St. dev.:

0.46

Standard deviation calculated from experience with pigments: 0.13 x D50 (minimum value: 0.1)

Conclusions:

The mass median diameter is 3.5 µm.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1999

Report date:

1999

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

other: Directive VID 2263, part 1

Principles of method if other than guideline:

Determination of the "Brennzahl" (see below) and burning rate

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-methylphenyl)-3-oxobutyramide]

EC Number:

226-789-3

EC Name:

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

Cas Number:

5468-75-7

Molecular formula:

C34H30Cl2N6O4

IUPAC Name:

2-[(1E)-2-{3,3'-dichloro-4'-[(1E)-2-{1-[(2-methylphenyl)carbamoyl]-2-oxopropyl}diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl]-N-(2-methylphenyl)-3-oxobutanamide

Test material form:

solid: nanoform

Results and discussion

Flammable solids

Flammable solids 1

Test procedure:

other: determination of the combustion class (Brennzahl)

Remarks on result:

other: BZ 5 was assigned

Flammable solids 2

Test procedure:

burning rate test: preliminary screening test

Remarks on result:

not determinable

Remarks:

test substance extinguished at an early state of the test line

Any other information on results incl. tables

Brennzahl (BZ, combustion class) 5 was assigned to the test material: "burning with flame or spark generation"

the test for the determination of the burning rate had to be conducted. In the pre-test the flame of the ignited test item extinguishes at an early stage of the test line.

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Remarks:

Regulation EC 1272/2008

Conclusions:

the test item has not to be classified as flammable solid according to Regulation EC 1272/2008