4,5-bis(hydroxymethyl)-2-phenyl-1H-imidazole

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the organic substance does not contain metals or metalloids and hence, the classification procedure does not need to be applied

the study does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water

the study does not need to be conducted because the substance is known to be soluble in water to form a stable mixture

Reference 2

Endpoint:

pyrophoric solids

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:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 07 December 2021 to 09 March 2022

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)

Version / remarks:

United Nations Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Seventh revised edition (2019)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

Actual storage Conditions: Stored in original plastic bag in a ventilated closed cupboard at normal laboratory temperature.

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks on result:

substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

The flame from the gas burner was applied to one end of the rope for 2 minutes and the test item did not ignite. Some fume was observed at the beginning when the flame was put in contact with the test item. The test item degraded and melted in contact with the gas burner.
As no propagation of the combustion (flame or smouldering) along 200 mm within two minutes occurred, the test item is not considered as a flammable solid, and no further testing is carried out.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The test item is not considered as a flammable solid, according to UN-GHS and EU-CLP criteria.

Executive summary:

The flammability of the test item was determined, as a solid, according to UN N1 guideline, under GLP.

In the preliminary test, the application of the flame of a gas burner to one end of the powder strip lead to degradation and melting, but the test item did not ignite and no propagation occurred.

Therefore, no further testing is required, and the test item is not considered as a flammable solid.

Description of key information

No ignition or propagation in contact with a flame. (UN N1, GLP; Noel Y., 2022)

Not pyrophoric. No release of flammable gases if contact with water. (waived)

Key value for chemical safety assessment

Flammability:

not classified

Justification for classification or non-classification

According to UN Globally Harmonised System (GHS) and Regulation (EC) No.1272/2008 (CLP) criteria, no ignition occurred in the preliminary screening test, therefore the substance is NOT considered as a flammable solid.