1,1,1-trifluoroacetone

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

26 September 2016 - 11 January 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

GLP compliant

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))

Version / remarks:

31 May 2008

Deviations:

no

Qualifier:

according to guideline

Guideline:

DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)

Version / remarks:

May 2003

Deviations:

no

Qualifier:

according to guideline

Guideline:

IEC 60079-4 (Electrical apparatus for explosive gas atmospheres. Part 4: Method of test for ignition temperature)

Version / remarks:

1975

Deviations:

no

GLP compliance:

yes

Specific details on test material used for the study:

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL:
- At room temperature

OTHER SPECIFICS:
- Purity/composition correction factor: No correction factor required.
- Test item hanling: No specific handling conditions required, but for practical reason the test item could be kept on ice to avoid evaporation of the material before and between performance of physico-chemical tests.

Key result

Auto-ignition temperature:

415 °C

Atm. press.:

ca. 1 000 hPa

Preliminary test

The estimated auto-ignition temperature was 440°C.

Main study

Ignition of the test item within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. The maximum deviation between the three values was < 20°C. According to the gauidelines, no further testing was required.

The lowest temperature at which ignition of the test item occurred was 419°C. This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of the test item of 415°C.

The results of the main study on the determination of the auto-ignition temperature of the test item are given in the following Table.

Test	Volume [µL]	Auto-ignation temperature [°C]	Ignition delay [s]	Colour of the flame	Minimum auto-ignition temperature [°C]
1 2 3	70 150 300 125 225 325 100 200 350	438 425 426 426 421 430 430 419 434	12 19 14 19 18 15 19 26 16	Orange/Blue Blue Blue Blue Blue Blue Blue Blue Blue	425 421 419

Conclusions:

The test item, 1,1,1-trifluoroacetone, is auto-ignitable with an auto-ignition temperature of 415°C at approximately 1000 hPa.

Executive summary:

Measurement of the auto-ignition temperature of 1,1,1-trifluoroacetone was performed according to standardised guidelines ( EU A.15, DIN 51794 and IEC 79-4) under GLP conditions, using a commercially auto-ignition temperature apparatus.

The test item, 1,1,1-trifluoroacetone, is auto-ignitable with an auto-ignition temperature of 415°C at approximately 1000 hPa.

Description of key information

The measurement of the auto-ignition temperature was performed according to standardised guidelines ( EU A.15, DIN 51794 and IEC 79-4) under GLP conditions.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

415 °C