5-bromo-1,3-dichloro-2-fluorobenzene

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

pyrophoric liquids

Type of information:

experimental study

Adequacy of study:

key study

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.3 (Test method for pyrophoric liquids)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Test procedure:

ignition time on contact with air

Remarks on result:

no ignition on contact with air (not further specified)

Key result

Test procedure:

effect on filter paper

Remarks on result:

no ignition within 5 minutes

Six tests on ignition on contact with air were conducted with diatomaceous earth at a room temperature of 24.5 °C. No signs of ignition during dropping or throughout the five minute observation period were seen.

Three tests on ignition on contact with filter paper were conducted at a room temperature of 24.5 °C. No signs of ignition or charring of the filter paper throughout the five minute observation period were seen.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The test substance does not spontaneously ignite on contact with air or ignite or char filter paper at ambient temperatures. In accordance with the criteria of UN Test N.3, the test substance is not classified as a pyrophoric liquid.

Executive summary:

A study on the pyrophoric properties of the liquid substance were conducted under GLP in accordance with UN Test N.3 "Test method for pyrophoric liquids".

Six tests on ignition on contact with air were conducted with diatomaceous earth at a room temperature of 24.5 °C. No signs of ignition during dropping or throughout the five minute observation period were seen.

Three tests on ignition on contact with filter paper were conducted at a room temperature of 24.5 °C. No signs of ignition or charring of the filter paper throughout the five minute observeration period were seen.

Reference 2

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Type of information:

experimental study

Adequacy of study:

key study

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.5 (Test method for substances which in contact with water emit flammable gases)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Test procedure:

step 1

step 2

step 3

step 4

Max. rate of gas release:

0.18 L/kg h

Identity of evolved gas:

unknown

Remarks on result:

other: This was obtained in only one of the three tests and is considered to be due to the release of trapped air bubbles within the system. No gas evolution was observed in the other two tests.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The test substance does not evolve flammable gases on contact with water. In accordance with the criteria of UN Test N.5, the test substance is not classified as a substance which, in contact with water, emits flammable gases.

Executive summary:

The reactivity of the substance with water was tested under GLP in accordance with UN Test N.5 "Test method for substances which in contact with water emit flammable gases".

Two preliminary screening tests, using small quantities of the test substance, were carried out to determine whether or not any gas is evolved on contact with water and if so, whether or not it spontaneously ignites:

Step 1: A small quantity of the test substance (one or two drops) was placed in a trough containing distilled water.

Step 2: A small quantity of the test substance (one or two drops) was placed on the centre of a piece of filter paper floating on the surface of distilled water.

No spontaneous ignition of any evolved gases in one of the screening tests was observed.

In the absence of a positive result in any of the screening tests, the following test, Step 4, was carried out in triplicate:

Step 4: 10 - 20 mL of distilled water was added to ∼ 10 g of the test substance in a conical flask. Any evolved gases are collected and the quantities measured at hourly intervals for a period of 7 hours (or longer if the results are erratic). A maximum rate of gas release of 0.18 L/kg/hour was obtained in obtained in only one of the three tests and was considered to be due to the release of trapped air bubbles within the system. No gas evolution was observed in the other two tests.

Description of key information

The pyrophoric properties of the substance were studied in accordance with UN Test N.3 and the reactivity with water (release of flammable gases in contact with water) was tested in accordance with UN Test N.5 under GLP in a reliable and valid study.

Key value for chemical safety assessment

Flammability:

not classified

Additional information

The substance is not pyrophoric and does not release flammable gases in contact with water.

Justification for classification or non-classification

The substance does not spontaneously ignite on contact with air or ignite or char filter paper at ambient temperatures. In accordance with the criteria of UN Test N.3, the test substance is not classified as a pyrophoric liquid.

The test substance does not evolve flammable gases on contact with water. In accordance with the criteria of UN Test N.5, the test substance is not classified as a substance which, in contact with water, emits flammable gases.