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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.

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