Butanamide, 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-, N,N'-bis(p-anisyl and Ph) derivs.

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Remarks:

according to standard operating procedure of the test institute

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:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with national standard methods

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

Qualifier:

according to guideline

Guideline:

other: VDI 2263, part 1

Key result

Test procedure:

other: screening test according to VDI 2263, part 1

Remarks on result:

other: combustion class BZ 1 "no ignition" was assigned

Test procedure:

other: test according to VDI 2263, part 1, kieselgur mixture

Remarks on result:

other: combustion class 5 "burning with flame or spark generation"

In the test combustion class (Brennzahl) 1, "no ignition", was assigned to the test item. This refers to the test at room temperature and the test at 100°C. By applying an ignition source the test item melted.

In the test with the kieselgur mixture (at room temperature and at 100°C) the burning behaviour was assessed as combustion class 5 "burning with flame or spark generation".

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The test item has not to be classified as flammable solid according to regulation (EC) 1272/2008.

Executive summary:

The objective of this study was the determination of the flammability of the test item.

In a screening test according to Directive VDI 2263, part 1, the combustion behaviour of the test item was assessed. Combustion class 1 "no ignition" was assigned (room temperature and 100°C)

In a test with a kieselgur mixture combustion class 5 "burning with flame or spark generation" was recorded. This additional test was performed, because melting was observed when an ignition source was applied.

Thus, the test item 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:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with national standard methods

Remarks:

Directive VDI 2263, part 1

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

Relative self-ignition temperature:

>= 290 °C

Remarks on result:

other: result refers to the pure test substance

Relative self-ignition temperature:

>= 300 °C

Remarks on result:

other: result refers to the Kieselgur mixture (1:1)

the recorded self-ignitions did not lead to relevant temperature increase.

Conclusions:

Due to the results from the Grewer-Oven screening test the test item has not to be classified as self-heating substance according to Regulation (EC) No 1272/2008.

Executive summary:

In the screening test in the Grewer oven according to Directive VDI 2263, part 1, the test item showed at 290°C self-ignition not leading to a relevant temperature increase.

According to Regulation EC 1272/2008, annex I section 2.11.4.2. nur further studies are required and the test item has not to be classified als self-heating substance.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Principles of method if other than guideline:

Differential thermal analysis (DTA)

Type of method:

differential scanning calorimetry

Remarks:

DTA

Test material

Test material information

Constituent 1

Reference substance name:

Butanamide, 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-, N,N'-bis(p-anisyl and Ph) derivs.

EC Number:

290-823-3

EC Name:

Butanamide, 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-, N,N'-bis(p-anisyl and Ph) derivs.

Cas Number:

90268-23-8

Molecular formula:

C32H26Cl2N6O4 // C33H28Cl2N6O5 // C34H30Cl2N6O6

IUPAC Name:

2-[(1E)-2-{3,3'-dichloro-4'-[(1E)-2-[2-oxo-1-(phenylcarbamoyl)propyl]diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl]-3-oxo-N-phenylbutanamide; 2-[(1E)-2-{3,3'-dichloro-4'-[(1E)-2-{1-[(4-methoxyphenyl)carbamoyl]-2-oxopropyl}diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl]-3-oxo-N-phenylbutanamide; 2-[(1E)-2-{3,3'-dichloro-4'-[(1E)-2-{1-[(4-methoxyphenyl)carbamoyl]-2-oxopropyl}diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl]-N-(4-methoxyphenyl)-3-oxobutanamide

Test material form:

solid: nanoform

Results and discussion

Melting / freezing point

Melting / freezing pt.:

303 °C

Decomposition:

yes

Decomp. temp.:

312 °C

Any other information on results incl. tables

At an onset temperature of 270°C a beginning endothermal process (peak at 303°C) was recorded. An exothermic decomposition reaction was recorded immediately after the melting process (peak 312°C). The mean decomposition energy was 430 J/g.

Applicant's summary and conclusion

Conclusions:

Decomposition starts without discernible melting, the decompisition temperature is 312 °C.