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Auto flammability

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Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2002-05-20 - 2002-06-21 (experimental phase)
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Version / remarks:
EEC Directive 92/69 EEC, Part A, Methods for the determination of physico-chemical properties, A.16: "Relative self-ignition temperature for solids", EEC Publication No, L383
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Specific details on test material used for the study:
- Storage condition of test material: at room temperature (at about 20 °C)
Key result
Remarks on result:
no self-ignition observed up to the melting point

1.3-Dimethyl-4-Aminouracil is not auto-flammable, according to the criteria as described in the guideline.

Conclusions:
1.3-DIMETHYL-4-AMINOURACIL is not auto-flammable, according to the criteria as described in the guideline.
Executive summary:

The determination of the relative self-ignition temperature of the test item was performed according to the EEC Directive 92/69, Part A, Methods for the determination of physico-chemical properties, A.16 "Relative self-ignition temperature for solids", EEC Publication No. L383, December 1992.

Using a linear increase in temperature of about 0.5 °C/min, 1,3-DIMETHYL-4-AMINOURACIL showed no relevant exothermic reaction. 1,3-DIMETHYL-4-AMINOURACIL (CD 19-0456) has a melting point at about 300 °C. As the above mentioned guideline only applies to solids, the temperature range between 300 °C and 400 °C is not relevant for the present test item. At the end of the measurement 1.3-DIMETHYL-4-AMINOURACIL was run out of the sample cube due to melting and was coloured black.

In conclusion, 1.3-DIMETHYL-4-AMINOURACIL is not auto-flammable.

Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP-guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
GLP compliance:
yes
Key result
Remarks on result:
no self-ignition observed up to the melting point

Up to the melting point no self-heating has been detected.

Description of key information

Auto flammability

- no self-ignition observed up to the melting point (296°C) (EU method A.16, GLP)

- no self-ignition observed up to the melting point (299°C) (EU method A.16, GLP)

Key value for chemical safety assessment

Additional information

No self-ignition was observed up to the melting point of the test substance.