reaction product of diphenylmethanediisocyanate, octylamine, 4-ethoxyaniline and ethylenediamine (1:0,37:1,53:0,05)

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1999-02-08 to 1999-02-08

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Version / remarks:

December 1992

Deviations:

no

Principles of method if other than guideline:

NA

GLP compliance:

yes (incl. QA statement)

Key result

Test procedure:

other: burning time over a distance of 200 mm

Burning time:

4.6 min

In contact with the ignition source, Urea 4 melted. The melt could be ignited with the flame and could sustain a burning reaction. However, a propagation of the reaction front with a flame on the surface of the test substance file was observed. Thereby the burning time over a distance of 200 mm was determined to be 4.6 minutes. After the experiment, a black residue remained on the surface of the test substance pile.

Interpretation of results:

non flammable

Conclusions:

In contact with the ignition source, Urea 4 melted. The melt could be ignited with the flame and could sustain a burning reaction. However, a propagation of the reaction front with a flame on the surface of the test substance pile was observed. Thereby the burning time over a distance of 200 mm was determined to be 4.6 minutes. In conclusion, Urea 4 is not highly flammable according to the criteria as described in the EU method A. 10.

Executive summary:

The flammability of Urea 4 was determined according to EU method A.10. In contact with the ignition source, Urea 4 melted. The melt could be ignited with the flame and could sustain a burning reaction. However, a propagation of the reaction front with a flame on the surface of the test substance pile was observed. Thereby the burning time over a distance of 200 mm was determined to be 4.6 minutes. In conclusion, Urea 4 is not highly flammable according to the criteria as described in the EU method A. 10.

Reference 2

Endpoint:

self-heating substances / mixtures

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied

Reference 3

Endpoint:

pyrophoric liquids

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the substance is a solid

Reference 4

Endpoint:

flammable gases

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the substance is a solid

Reference 5

Endpoint:

pyrophoric solids

Type of information:

other: expert statement

Adequacy of study:

key study

Study period:

1998-12-03 to 1998-12-18

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: expert statement

Qualifier:

according to guideline

Guideline:

EU Method A.13 (Pyrophoric Properties of Solids and Liquids)

Version / remarks:

December 1992

Deviations:

no

Principles of method if other than guideline:

NA

GLP compliance:

no

Key result

Test procedure:

ignition time on contact with air

Remarks:

Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).

Remarks on result:

no ignition on contact with air (not further specified)

Remarks:

corresponding to 'no' in migrated source record.

From the structural formula of Urea 4 it was concluded that Urea 4 is not pyrophoric. The test substance does not contain any chemical group that might lead to spontaneously ignition a short time after coming in contact with air at room temperature (circa 20°C).

Interpretation of results:

other: non pyrophoric

Conclusions:

From the structural formula of Urea 4 it was concluded that Urea 4 is not pyrophoric. The test substance does not contain any chemical group that might lead to spontaneously ignition a short time after coming in contact with air at room temperature (circa 20°C).

Executive summary:

The pyrophoric properties of Urea 4 were estimated according to EU method A.13. From the structural formula of Urea 4 it was concluded that Urea 4 is not pyrophoric. The test substance does not contain any chemical group that might lead to spontaneously ignition a short time after coming in contact with air at room temperature (circa 20°C).

Reference 6

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Type of information:

other: expert statement

Adequacy of study:

key study

Study period:

1998-12-03 to 1998-12-18

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: expert statement

Qualifier:

according to guideline

Guideline:

EU Method A.12 (Flammability (Contact with Water))

Version / remarks:

December 1992

Deviations:

no

Principles of method if other than guideline:

NA

GLP compliance:

no

Substances which, in contact with water of damp air, evolve highly flammable gases in dangerous quantities at a minimum rate of 1 litre/kg per hour are highly flammable. The chemical structure of Urea 4 does not contain chemical groups, which may lead to the conclusion that the test substance is capable of developing a dangerous amount of (flammable) gas in contact with air, damp air or water.

Interpretation of results:

other: non flammable in contact with water

Conclusions:

The chemical structure of Urea 4 does not contain chemical groups, which may lead to the conclusion that the test substance is capable of developing a dangerous amount of (flammable) gas in contact with air, damp air or water.

Executive summary:

The flammability (contact with water) of Urea 4 was estimated according to EU method A.12. The chemical structure of Urea 4 does not contain chemical groups, which may lead to the conclusion that the test substance is capable of developing a dangerous amount of (flammable) gas in contact with air, damp air or water.

Description of key information

In contact with the ignition source, Urea 4 melted. The melt could be ignited with the flame and could sustain a burning reaction. However, a propagation of the reaction front with a flame on the surface of the test substance pile was observed. Thereby the burning time over a distance of 200 mm was determined to be 4.6 minutes. In conclusion, Urea 4 is not highly flammable according to the criteria as described in the EU method A. 10.

The chemical structure of Urea 4 does not contain chemical groups, which may lead to the conclusion that the test substance is capable of developing a dangerous amount of (flammable) gas in contact with air, damp air or water. From the structural formula of Urea 4 it was concluded that Urea 4 is not pyrophoric.

The test substance does not contain any chemical group that might lead to spontaneously ignition a short time after coming in contact with air at room temperature (circa 20°C).

Key value for chemical safety assessment

Flammability:

non flammable

Additional information

Flammable solids

The flammability of Urea 4 was determined according to EU method A.10. In contact with the ignition source, Urea 4 melted. The melt could be ignited with the flame and could sustain a burning reaction. However, a propagation of the reaction front with a flame on the surface of the test substance pile was observed. Thereby the burning time over a distance of 200 mm was determined to be 4.6 minutes. In conclusion, Urea 4 is not highly flammable according to the criteria as described in the EU method A. 10.

Flammable gases

The test item is a solid at ambient conditions. This hazard class is only applicable for gases. Thus, the substance was not considered for classification as flammable gas.

 

Flammable liquid

The test item is a solid at ambient conditions. This hazard class is only applicable for liquids. Thus, the substance was not considered for classification as flammable liquid.

Flammable Aerosols

Section 2.4.2 of Guidance on the application on the CLP Criteria state as follows: “Aerosols, this means aerosol dispensers, are any non-refillable receptacles made of metal, glass or plastics and containing a gas compressed, liquefied or dissolved under pressure, with or without a liquid, paste or powder, and fitted with a release device allowing the contents to be ejected as solid or liquid particles in suspension in a gas, as a foam, paste or powder or in a liquid state or in a gaseous state." Thus, as the substance does not meet the definition for aerosol, the test for aerosols was waived. Consequently the substance has not to be considered for classification for this hazard class.

Substances which, in contact with water, emit flammable gases

The flammability (contact with water) of Urea 4 was estimated according to EU method A.12. The chemical structure of Urea 4 does not contain chemical groups, which may lead to the conclusion that the test substance is capable of developing a dangerous amount of (flammable) gas in contact with air, damp air or water.

Self-heating substances and mixtures

The study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods (days) and hence, the classification procedure does not need to be applied.

Pyrophoric liquids

The test item is a solid at ambient conditions. This hazard class is only applicable for liquids. Thus, the substance was not considered for classification as pyrophoric liquid.

Pyrophoric solids

The pyrophoric properties of Urea 4 were estimated according to EU method A.13. From the structural formula of Urea 4 it was concluded that Urea 4 is not pyrophoric. The test substance does not contain any chemical group that might lead to spontaneously ignition a short time after coming in contact with air at room temperature (circa 20°C).

 

In conclusion, the substance does not have to be considered as flammable solid, gas, flammable liquid, flammable in contact with water, flammable aerosol, pyrophoric solid, pyrophoric liquid or self-heating substance.

Justification for classification or non-classification

Classification, Labelling, and Packaging Regulation (EC) No 1272/2008

Based on the flammability experiment, the structure of the molecule and experience in handling and use, and in accordance with Annex I Section 2.2, Section 2.3, Section 2.6, Section 2.9, Section 2.10 Section, 2.11 and Section 2.12 of Regulation (EC) No 1272/2008, as amended for the eighteenth time in Regulation (EU) 2022/692, and UN GHS Rev 6 (2015) the test item has not to be classified as flammable solid, flammable liquid, self-heating substance in Class 4 Division 4.2, substances which in contact with water emit flammable gases in Class 4 Division 4.3, pyrophoric liquid, pyrophoric solid in class 4 Division 4.2, flammable gases in class 2 or as aerosol in class 2.