Registration Dossier
Registration Dossier
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EC number: 210-765-4 | CAS number: 623-03-0
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- May 1997
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
- 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
- Conclusions:
- No auto-ignition of deposited 4-Chlorobenzonitrile 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 reaction observed for deposited 4 -Chlorobenzonitrile dust.
- Endpoint:
- auto-ignition temperature, other
- Remarks:
- dispersed dust
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- May 1997
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
- 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
- Auto-ignition temperature:
- > 600 °C
- Remarks on result:
- other: no reaction observed
- Conclusions:
- No auto-ignition of dispersed 4-Chlorobenzonitrile dust occurred on surfaces until 600°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. No auto-ignition of dispersed 4-Chlorobenzonitrile dust occurred on surfaces until 600°C.
Referenceopen allclose all
At the highest tested temperature (360°C) there was no reaction observed for deposited 4 -Chlorobenzonitrile dust.
At the highest tested temperature (600°C) there was no reaction observed for dispersed 4 -Chlorobenzonitrile dust.
Description of key information
Two tests for dusty 4-Chlorobenzonitrile are available evaluating the auto-flammability
on hot surface for deposited and dispersed 4-Chlorobenzonitrile. No
auto-ignition of deposited and dispersed 4-Chlorobenzonitrile dust
occurred on surfaces until 360°C and 600 °C, respectively.
Key value for chemical safety assessment
Additional information
The test for deposited 4 -Chlorobenzonitrile was conducted for 5 min on a hot surface up to 360°C. No reaction was observed.
The test for dispersed 4 -Chlorobenzonitrile was conducted on a surface up to 600°C. No reaction was observed.
It is concluded that a potential self-ignition temperature of 4 -Chlorobenzonitrile is higher than 360 and 600 °C respectively.
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