Benzonitrile, 2,3-dichloro-

Auto flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

March - April 2016

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

test procedure in accordance with national standard methods with acceptable restrictions

Qualifier:

no guideline followed

Principles of method if other than guideline:

Deposited dust: This test determines the ignition temperature of a dry product on a hot surface. For a description of the method see "any other information on materials and methods".

GLP compliance:

not specified

Key result

Relative self-ignition temperature:

> 360 °C

Remarks on result:

other: 2,3-Dichlorobenzonitril starts creating smoke at 240 °C

At the highest tested temperature (360°C) there was no auto-ignition observed for deposited 2,3 -Dichlorobenzonitril dust.

2,3-Dichlorobenzonitril starts creating smoke

at 240 °C

Conclusions:

No auto-ignition of deposited 2,3-Dichlorobenzonitrile dust occurred on surfaces until 360°C.

Executive summary:

The test determines the ignition temperature of a deposited dusty test substance on hot surfaces. The test is conducted according to the test protocol. The surface area of the substance is increased intentionally in this test by preparing the test substance accordingly to simulate the deposited dusty properties. The ignition temperature of deposited dusty test material is expected to be lower than the ignition temperature of the solid with larger particle diameters. At the hottest temperature in this test (360°C) there was no auto-igniton observed for deposited 2,3 -Dichlorobenzonitrile dust.

Reference 2

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

March - April 2016

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

test procedure in accordance with national standard methods with acceptable restrictions

Qualifier:

no guideline followed

Principles of method if other than guideline:

Dispersed dust: This test determines the ignition temperature of flammable dispersed dusty substances on hot surfaces. See section "any other information on materials and methods" for detailed description of the method.

GLP compliance:

not specified

Relative self-ignition temperature:

580 °C

The lowest temperature at which ignition of dispersed 2,3 -Dichlorobenzonitrile dust was observed was 580 °C.

Conclusions:

The lowest temperature at which ignition of dispersed 2,3 -Dichlorobenzonitrile dust was observed was 580 °C.

Executive summary:

The test determines the ignition temperature of a dispersed dusty test substance on hot surfaces. The test is conducted according to a test protocol. The surface area of the substance is increased intentionally in this test by preparing the test substance accordingly to simulate the dispersed dusty properties. The ignition temperature of dispersed dusty test material is expected to be significantly lower than the ignition temperature of the solid with larger particle diameters. The lowest temperature at which ignition of dispersed 2,3 -Dichlorobenzonitrile dust was observed was 580 °C.

Description of key information

Two tests for dusty 2,3 -Dichlorobenzonitrile are available evaluating the auto-flammability on hot surface for deposited and dispersed 2,3 -Dichlorobenzonitile. No auto-ignition of deposited 2,3 -Dichlorobenzonitrile occurred on surfaces until 360°C. The lowest temperature at which ignition of dispersed 2,3 -Dichlorobenzonitrile dust was observed was 580 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

580 °C

Additional information

The test for deposited 2,3 -Dichlorobenzonitrile (100 mg) was conducted for 5 min on a hot surface up to 360°C. No reaction was observed.

The test for dispersed 2,3 -Dichlorobenzonitrile was conducted on a surface up to 600°C. The lowest temperature at which ignition of dispersed 2,3 -Dichlorobenzonitrile dust was observed was 580 °C.