2,4-Imidazolidinedione, 5-(phenylmethylene)-, (5Z)-

Auto flammability

Administrative data

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2013-07-11 - 2013-07-12

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2013

Report date:

2013

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: UN Recommendation on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria, Rev. 6 (2015) and UN-Model_Regulations, Rev. 19 (2015), \/Dl 2263 Sheet 1, Grewer-Oven (1990)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

(5Z)-5-(phenylmethylidene)imidazolidine-2,4-dione

EC Number:

700-728-5

Cas Number:

74805-60-0

Molecular formula:

C10H8N2O2

IUPAC Name:

(5Z)-5-(phenylmethylidene)imidazolidine-2,4-dione

Test material form:

solid: particulate/powder

Results and discussion

Relative self-ignition temperature (solids)

Relative self-ignition temperature (solids) 1

Relative self-ignition temperature:

260 °C

Remarks on result:

no self ignition observed under the test conditions

Relative self-ignition temperature (solids) 2

Key result

Relative self-ignition temperature:

> 160 °C

Remarks on result:

no self-ignition observed up to the melting point

Any other information on results incl. tables

Before the performance of the Grewer-oven test, the test item was dried for 72 h in the vacuum drying oven at 60 °C (residual moisture: 8.2 wt. %). The dried test item was stored in the desiccator until the peformance of the test. 

The test item shows no exothermic effect up to 260 °C.

The temperature of the test item showed an endothermic effect in the temperature range 210 - 260 °C. Up to 260 °C no exothermic effect was observed. Above 260 °C the temperature in the test item wire-basket is slightly above the temperature of the reference item. The test item melts at 215.1 °C and therefore it is assumed that there is no test item in the wire-basket at temperatures above 260 °C. After the test the wire basket was empty. The measured temperature differences may be ascribed to uncertainities of the measurement. However, for an exclusion of the test item from class 4.2 "self-heating substances" the onset temperature in the Grewer-oven hast to be over 220 °C. 

Applicant's summary and conclusion

Conclusions:

The test item shows no exothermic effect up to 260 °C.
UN transport classification: Due to these results the test item has not to be classified as "self-heating substance" of class 4.2 according to the transport regulations. EU-GHS-CLP: Due to these results the test item has not to be classified as "self-heating substance" according to EU-GHS/CLP.