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Diss Factsheets

Administrative data

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:
According to Directive VDI 2263, part 1

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Directive VDI 2263, part I

Test material

Constituent 1
Chemical structure
Reference substance name:
Barbituric acid
EC Number:
200-658-0
EC Name:
Barbituric acid
Cas Number:
67-52-7
Molecular formula:
C4H4N2O3
IUPAC Name:
pyrimidine-2,4,6(1H,3H,5H)-trione

Results and discussion

Relative self-ignition temperature (solids)open allclose all
Relative self-ignition temperature:
>= 260 °C
Remarks on result:
other: Max. temperature of sample 300°C (pure substance)
Relative self-ignition temperature:
>= 340 °C
Remarks on result:
other: Max. temperature of sample 450°C (pure substance and kieselgur mixture)

Any other information on results incl. tables

In the screening test according to Grewer with the pure product and the kieselgur mixture an endothermal effect was observed at an onset temperature of 230°C.. At 260°C the beginning of an exothermal process was recorded with the pure test substance leading to a temperature of 300°C. After cooling down to the oven temperature a further exothermal process was observed at an onset temperature of 340°C leading to a maximum temperature of 450°C. more than 450 °C. The kiesegur mixture showed the same behaviour as the pure test substance at an onset temperature of 340°C.

Applicant's summary and conclusion

Conclusions:
The test item is not a self-heating substance according to Regulation (EC) no 1272/2008