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Physical & Chemical properties

Flammability

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Administrative data

Endpoint:
self-heating substances / mixtures
Type of information:
experimental study
Adequacy of study:
key study
Study period:
30 May - 1 Jun 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Test N.4 (Test method for self-heating substances)
Deviations:
not specified
GLP compliance:
yes (incl. QA statement)
Remarks:
Hess. Ministerium für Umwelt, Klimaschutz, Landwirtschaft und Verbraucherschutz; Wiesbaden, Germany

Test material

Results and discussion

Self-heating substances / mixtures
Test procedure:
other: 8 cm3 sample volume heated at 1.2 K/min in air.
Max. temp. reached:
420
Result:
negative outcome (no effect observed)
Remarks:
Not self-heating: onset temperature is > 220 ºC in the Grewer Oven test.
Remarks on result:
other: Exothermic effect started at 370 ºC leading to a maximum temperature of 420 ºC.

Any other information on results incl. tables

Results

Self-ignition in the Grewer Oven

In the investigation of self-heating in the Grewer Oven for the pure test item a first endothermic effect was detected in the temperature range of 100 - 160 °C. A second endothermic effect was detected in the temperature range of 250 - 280 °C and a third in the temperature range of 320 - 370 °C. An exothermic effect was detected starting at 370 °C, which led to a maximum temperature of 420 °C. After the measurement a brown residue remained in the basket.

 

Table 1: Results of the screening test for self-ignition in the Grewer Oven

Experiment

Onset self-ignition / °C

Maximum temperature /  °C

Pure test item

370

420

Final Results / Classification

The pure test item CUREZOL 2MAOK-PW indicated a self-heating at atmospheric pressure starting at a temperature of approx. 370 °C, which led to a maximum temperature of 420 °C.

UN Transport Regulation: The test item is not to be classified as self-heating substance in class 4, division 4.2 according to the UN Transport Regulation.

GHS / CLP Regulation EC 1272/2008 Annex 1: 2.11: The test item has not to be classified as self-heating substance according to GHS/CLP Regulation EC 1272/2008 Annex 1: 2.11.

Applicant's summary and conclusion

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