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

comparable to guideline study with acceptable restrictions

Remarks:

standard operating procedure of testing institute

Cross-reference

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:

September 9, 1998

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

Principles of method if other than guideline:

Differential thermal analysis (DTA)

Type of method:

differential scanning calorimetry

Remarks:

DTA

Melting / freezing pt.:

323 °C

Decomposition:

yes

Decomp. temp.:

325 °C

The DTA shows an endothermal reaction with an onset at 322.84 °C (rounded value of 323 °C taken as melting point) and a peak at 324.21 °C. Decomposition starts from the melting substance by a two-stage process. The (exothermal) decomposition reaction shows an onset at 325.08 °C (rounded value of 325 °C taken as decomposition temperature) and a peak at 330.57 °C, the decomposition energy is -610 J/k (mean from 2 measurements).

Conclusions:

Decomposition starts from the melting substance, with a melting point of 323 °C and a decompisition temperature of 325 °C.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1998

Report date:

1998

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:

Determination of the combustion index ( "Brennzahl") and the 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-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

Flammable solids

Flammable solids 1

Test procedure:

other: burning index according to VDI 2263, part 1

Remarks on result:

other: burning index 5

Remarks:

burning with flame or spark generation

Flammable solids 2

Test procedure:

burning rate test: preliminary screening test

Burning time:

115 s

Remarks on result:

other: burning time for a distance of 100 mm

Any other information on results incl. tables

the test item showed burning with flame when an ignition source was applied. A propagation of the combustion was observed and assessed as combustion index 5.

Thus, the burning rate had to be determined: 

 

Burning time for 100 mm: 151 s, corresponding to 0.87 mm/s

Applicant's summary and conclusion

Interpretation of results:

not classified based on GHS criteria

Conclusions:

With a burning time for 100 mm of 115 s (burning rate: 0.87 mm/s), the test item has not to be classified as flammable solid according to Regulation (EC) No 1272/2008.