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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2004
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Basic data given: comparable to guidelines/standards

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2004
Report date:
2004

Materials and methods

Principles of method if other than guideline:
Screening test according to Grewer, similar to VDI 2263 sheet 1

Test material

Constituent 1
Chemical structure
Reference substance name:
2-[(4-chloro-2-nitrophenyl)azo]-N-(2-chlorophenyl)-3-oxobutyramide
EC Number:
229-355-1
EC Name:
2-[(4-chloro-2-nitrophenyl)azo]-N-(2-chlorophenyl)-3-oxobutyramide
Cas Number:
6486-23-3
Molecular formula:
C16H12Cl2N4O4
IUPAC Name:
2-[(4-chloro-2-nitrophenyl)diazenyl]-N-(2-chlorophenyl)-3-oxobutanamide
Test material form:
solid: nanoform, no surface treatment

Results and discussion

Relative self-ignition temperature (solids)
Key result
Relative self-ignition temperature:
260 °C
Remarks on result:
other: For 1:1 mixture with kieselguhr
Remarks:
at atm. press. of ca.1013.0 hPa

Any other information on results incl. tables

In the Grewer oven test with the neat substance, no self-ignition is observed. No exothermal reaction was observed up to 420°C since the sample melted at around 260°C and flowed from the basket prior to reaction with air.

The 1:1 mixture with kieselguhr showed a first exothermal (decomposition) reaction at 260°C and a second one at 360°C, the latter leading to a temperature increase to more than 650°C. At 260°C, sample temperatures increase to approximately 440°C.

The self-ignition temperature is therefore given for the 1:1 mixture with kieselguhr.

Applicant's summary and conclusion

Conclusions:
The neat substance shows no self-ignition and the 1:1 mixture with kieselguhr has a self-ignition temperature of 260°C.
Executive summary:

In a screening test according to Grewer, the neat substance shows no self-ignition and the 1:1 mixture with kieselguhr has a self-ignition temperature of 260°C.