1,1'-(methylenedi-4,1-phenylene)bis(3-butylurea)

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1993-11-24 to 1994-09-26

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 92/69

Deviations:

no

GLP compliance:

yes

Specific details on test material used for the study:

Analytical purity: >= 99.65 %
Lot/batch No.: 93.166

Key result

Relative self-ignition temperature:

256 °C

Remarks on result:

other:

Remarks:

at atm. press. of 101.31 kPa

Results:

Self-ignition of the test article started about 243 °C; a sharp temperature rise was noted at 256 °C. The second test confirmed the results of the first one (about 260 °C).

Conclusions:

HAT ISO was tested for self-ignition according to EU Guideline A 16 - Relative self-ignition temperature of solids. The self-ignition temperature of HAT ISO was determined as 256 °C. No classification and labelling is required according to Regulation 1272/2008/EEC (CLP) criteria.

Executive summary:

HAT ISO was tested for self-ignition according to EU Guideline A 16 - Relative self-ignition temperature of solids. About 4 g of test article as supplied were placed in the oven at room temperature. The oven temperature was then increased at the rate of 0.5 °C/minute up to 420 °C. The temperature of the oven and of the etst article were recorded, and the temperature/time curve was printed. The test was performed twice (with 4.02 and 3.33 g of test article. Self-ignition temperature of the test article was determined as the very sharp temperature rise of the sample above the oven temperature.

Results:

Room temperature: 13 °C;

Self-ignition of the test article started about 243 °C; a sharp temperature rise was noted at 256 °C. The second test confirmed the results of the first one (about 260 °C).

Description of key information

HAT ISO was tested for self-ignition according to EU Guideline A.16, Relative self-ignition temperature of solids. About 4 g of test article as supplied were placed in the oven at room temperature. The oven temperature was then increased at the rate of 0.5 °C/minute up to 420 °C. The temperature of the oven and of the test article were recorded, and the temperature/time curve was printed. The test was performed twice (with 4.02 and 3.33 g of test article).
Self-ignition temperature of the test article was determined as the very sharp temperature rise of the sample above the oven temperature.
Results:
Self-ignition of the test article started about 243 °C; a sharp temperature rise was noted at 256 °C. The second test confirmed the results of the first one (ca. 260 °C).

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

529.2 K