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Diss Factsheets

Administrative data

relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
16 January 2008 - 14 May 2008
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The study has been performed according to EC guidelines and according to GLP principles.

Data source

Reference Type:
study report
Report date:

Materials and methods

Test guideline
according to guideline
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Details on test material:
- Name of test material (as cited in study report): S-500
- Physical state: yellow powder
- Lot/batch No.: MF1456-2345
- Expiration date of the lot/batch: 18 August 2011
- Storage condition of test material: At room temperature in the dark
- Stability under storage conditions: Stable

Results and discussion

Relative self-ignition temperature (solids)
Relative self-ignition temperature:
341 °C
Remarks on result:
at atm. press. of 101.325 kPa

Any other information on results incl. tables

An exothermic reaction started at an oven temperature of about 274°C. The test substance temperature increased to 319°C (by self-heating) at an oven temperature of 273°C.

According to the guideline, the test substance is self-ignitable when the temperature of the sample reaches 400°C (by self-heating) before the oven temperature is 400°C. This exothermic effect is probably due to decomposition but is of no relevance for the self-ignition study.

The test substance showed a second exothermic reaction starting at an oven temperature of about 340°C. The test substance temperature increased to >400°C (reaching a maximum of 418°C) at an oven temperature of 341°C. This temperature (341°C) was therefore taken to be the self-ignition temperature for the test substance.

Applicant's summary and conclusion

The test substance is self-ignitable at 341°C.