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Physical & Chemical properties

Auto flammability

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Link to relevant study record(s)

Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
NOV 2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
Harlan Laboratories Ltd., Derbyshire, UK
Auto-ignition temperature:
>= 373 - <= 383 °C
Atm. press.:
>= 100.9 - <= 101.18 kPa

Results

Temperature (°C)  Test Volume (mL) Ignition Delay (s)  Observations 
50(clean flask)  70 >300  No ignition. 
100(clean flask)  70 >300  No ignition. 
150(clean flask)  70 >300  No ignition. Grey fumes were emitted. 
200 70 >300  No ignition. Grey fumes were emitted. 
250 70 >300  No ignition. Grey fumes were emitted. 
300 70 >300  No ignition. Grey fumes were emitted. 
350 70 >300  No ignition. Grey fumes were emitted. 
400(clean flask)  70 2 A yellow flame. Grey fumes were emitted. 
390(clean flask)  70 3 A yellow/blue flame. Grey fumes were emitted. 
380(clean flask)  70 >300  No ignition. Grey fumes were emitted. 
386 70 3 A yellow/blue flame. Grey fumes were emitted. 
384 70 4 A yellow/blue flame. Grey fumes were emitted. 
382 70 >300  No ignition. Grey fumes were emitted. 
382(clean flask)  70 >300  No ignition. Grey fumes were emitted. 
382(clean flask)  200 1 A yellow/blue flame. Grey fumes were emitted. 
378 200 4 A yellow/blue flame. Grey fumes were emitted 
374 200 >300  No ignition. Grey fumes were emitted. 
376(clean flask)  200 >300  No ignition. Grey fumes were emitted. 
376(clean flask)  400 >300  No ignition. Grey fumes were emitted. 
376(clean flask)  600 >300  No ignition. Grey fumes were emitted. 
376(clean flask)  800 >300  No ignition. Grey fumes were emitted. 
376(clean flask)  1000 >300  No ignition. Grey fumes were emitted. 

Room temperature: 19 to 20°C

Atmospheric pressure: 100.90 to 101.18 kPa

Conclusions:
auto-ignition temperature: 378 ± 5°C (at 100.90 to 101.18 kPa)
Executive summary:

The auto-ignition temperature was conducted using EU Method A.15 under GLP conditions.. Aliquots of test material were injected into the flask (heated in a flask heater) using a syringe and the flaks observed for signs of ignition over a 300 second period. The procedure was repeated, varying the sample size, as necessary, until the lowest temperature at which the ignition, if any occurred within 300 seconds of insertion, was determined. The test material has been determined to have an auto-ignition temperature of 378 ± 5°C (at 100.90 to 101.18 kPa).

Description of key information

The auto-ignition temperature was conducted using EU Method A.15 under GLP conditions.. Aliquots of test material were injected into the flask (heated in a flask heater) using a syringe and the flaks observed for signs of ignition over a 300 second period. The procedure was repeated, varying the sample size, as necessary, until the lowest temperature at which the ignition, if any occurred within 300 seconds of insertion, was determined. The test material has been determined to have an auto-ignition temperature of 378 ± 5°C (at 100.90 to 101.18 kPa).

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
378 °C

Additional information