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Physical & Chemical properties

Auto flammability

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Reference
Endpoint:
auto-ignition temperature, other
Remarks:
Liquids and gases
Type of information:
experimental study
Adequacy of study:
key study
Study period:
04 Aug - 06 Aug 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Study was conducted in accordance with international guidelines and in accordance with GLP. All guideline validity criteria were met.
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
Qualifier:
according to guideline
Guideline:
IEC 60079-4 (Electrical apparatus for explosive gas atmospheres. Part 4: Method of test for ignition temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Specific details on test material used for the study:
RADIOLABELLING INFORMATION (if applicable)
- Radiochemical purity: N/A
- Specific activity: N/A
- Locations of the label: N/A
- Expiration date of radiochemical substance: N/A

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature, dark, under nitrogen.
- Stability under test conditions: Assumed stable
- Solubility and stability of the test substance in the solvent/vehicle: N/A
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium: N/A

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: N/A
- Preliminary purification step (if any): N/A
- Final dilution of a dissolved solid, stock liquid or gel: N/A
- Final preparation of a solid: N/A

FORM AS APPLIED IN THE TEST (if different from that of starting material)

OTHER SPECIFICS: N/A
Key result
Auto-ignition temperature:
>= 279 - <= 289 °C
Atm. press.:
>= 100.6 - <= 100.9 kPa

Table 1: Results of the auto-ignition temperature determination

 Test temperature (ºC)  Test volume (μL) Ignition delay (s)  Observations
 200 (clean flask) 70  >300   No ignition. Grey fumes emitted.
 250 (clean flask) 70 >300   No ignition. Grey fumes emitted.
 300 (clean flask) 70  An orange flame. Grey fumes were emitted.
 290 70 6   An orange flame. Grey fumes were emitted.
 280 70  >300   No ignition. Grey fumes emitted.
 282 70  >300   No ignition. Grey fumes emitted.
 284 70  >300   No ignition. Grey fumes emitted.
 286 70  8   An orange flame. Grey fumes were emitted.
 284 (clean flask) 70  >300   No ignition. Grey fumes emitted.
  284 (clean flask)  200  >300   No ignition. Grey fumes emitted.
  284 (clean flask)  400  11   An orange flame. Grey fumes were emitted.
 282 (clean flask)  400  >300   No ignition. Grey fumes emitted.
  282 (clean flask)  600  >300   No ignition. Grey fumes emitted.
  282 (clean flask)  800  >300   No ignition. Grey fumes emitted.
  282 (clean flask)  1000  >300   No ignition. Grey fumes emitted.
  282 (clean flask)  1200  >300   No ignition. Grey fumes emitted.

Room temperature: 20 to 21 ºC.

Atmospheric pressure: 100.6 to 100.9 kPa (atmospheric pressure).

The test item has been determined to have an auto-ignition temperature of 284 ± 5 °C.

Conclusions:
The test item has been determined to have an auto-ignition temperature of 284 ± 5 °C at 100.6 - 100.9 kPa (atmospheric pressure).
Executive summary:

The auto-ignition temperature was determined using EU Method A.15. The auo ignition temperature is the lowest temperature at which the test substance will ignite when mixed with air under the conditions defined in the test method.

Ignition of the test substance within 300 seconds after introduction was observed with each sample and volume and with each test a minimum auto-ignition temperature was obtained.

The lowest temperature at which auto-ignition of the test substance occured was 284 at 100.6 - 100.9 kPa (atmospheric pressure). The auto-ignition temperature was determined to be 284 ± 5 °C.

Description of key information

EU Method A.15, 2017 - The auto-ignition temperature was determined using EU Method A.15.

Ignition of the test substance within 300 seconds after introduction was observed with each sample and volume and with each test a minimum auto-ignition temperature was obtained.

The lowest temperature at which auto-ignition of the test substance occured was 284 at 100.6 - 100.9 kPa (atmospheric pressure). The auto-ignition temperature was determined to be 284 ± 5 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
284 °C

Additional information