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Physical & Chemical properties

Auto flammability

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Administrative data

Endpoint:
auto-flammability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
September 3-25, 1998
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Valid method according to company guideline

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1998
Report date:
1998

Materials and methods

Principles of method if other than guideline:
Screening test according to Grewer, test with higher volume and DTA

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-N-phenylbutyramide]
EC Number:
228-787-8
EC Name:
2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-N-phenylbutyramide]
Cas Number:
6358-85-6
Molecular formula:
C32H26Cl2N6O4
IUPAC Name:
2,2'-[(3,3'-dichlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis(3-oxo-N-phenylbutanamide)

Results and discussion

Auto-ignition temperature (liquids / gases)
Auto-ignition temperature:
>= 310 °C
Atm. press.:
ca. 1 013 hPa
Remarks on result:
other:
Relative self-ignition temperature (solids)
Relative self-ignition temperature:
>= 310 °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, the substance melts at around 310 °C and decomposes before ignition.

The hot storage test at 200 °C only shows a heating of 3 °C (maximum temperature: 203.3 °C; time to maximum temperature: 2.5 h).

The DTA shows a decomposition reaction from the melting substance starting at 310 °C, reaction energy of the decomposition: -580 kJ/kg (see section 4.2)

Applicant's summary and conclusion

Conclusions:
The substance melts at around 310 °C and decomposes before ignition.
Executive summary:

In a screening test according to Grewer, the test substance melts at around 310 °C and decomposes before ignition. These findings were confirmed in a hot storage test and in a DTA.