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EC number: 242-361-9 | CAS number: 18479-57-7
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- auto-ignition temperature (liquids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 25 november 2016 - 30 november 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Justification for type of information:
- The determination was carried out using a procedure* designed to be compatible with Method A.15 Auto-Ignition Temperature (Liquids and Gases) of Commission Regulation (EC) No 440/2008 of 30 May 2008. Apparatus: Carbolite flask heater
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
- Version / remarks:
- Based on, Anon (1987), Electrical Apparatus for Explosive Gas Atmospheres. Part 4: Method of Test for Ignition Temperature. IEC Publications 79-4, P1-19.
- Deviations:
- no
- Principles of method if other than guideline:
- Test System
The determination was carried out using a procedure* designed to be compatible with Method A.15 Auto-Ignition Temperature (Liquids and Gases) of Commission Regulation (EC) No 440/2008 of 30 May 2008.
Apparatus: Carbolite flask heater
Performance of the Test
The test flask was heated in a flask heater. Aliquots of test item (tested as received) were injected into the flask using a syringe and the flask was observed for signs of ignition over a 300 second period. This procedure was repeated, varying the sample size, as necessary, until the lowest temperature at which ignition, if any, occurred within 300 seconds of insertion, was determined. Where clean flasks were not used, the flask was flushed with air between sample insertions.
Evaluation of Data
The auto-ignition temperature is the lowest temperature that will result in the ignition of the test item after being injected into the test flask.
The room temperature and atmospheric pressure is recorded for each day of the test. - GLP compliance:
- yes (incl. QA statement)
- Key result
- Auto-ignition temperature:
- 368 °C
- Atm. press.:
- >= 100 - <= 103 kPa
- Conclusions:
- The auto-ignition temperature of tetrahydromyrcenol is 368 °C at an atmospheric pressure of 100-103 kPa.
- Executive summary:
The auto-ignition temperature of tetrahydromyrcenol was determined in a study comparable to guideline EU A.15, using a carbolite flask heater under GLP. The auto-ignition temperature was found to be 368°C at 100 -103kPa.
Reference
Results of the auto-ignition temperature determination are shown in the following table:
Temperature (ºC) |
Clean Flask (Yes/No) |
Volume (μL) |
Ignition Delay (s) |
Observations |
200 |
Yes |
70 |
>300 |
No ignition, grey fumes emitted |
250 |
Yes |
70 |
>300 |
No ignition, grey fumes emitted |
300 |
Yes |
70 |
>300 |
No ignition, grey fumes emitted |
350 |
No |
70 |
>300 |
No ignition, grey fumes emitted |
400 |
No |
70 |
2 |
Orange flame, grey fumes emitted |
390 |
Yes |
70 |
2 |
Orange flame, grey fumes emitted |
380 |
Yes |
70 |
3 |
Orange flame, grey fumes emitted |
370 |
Yes |
70 |
2 |
Orange flame, grey fumes emitted |
360 |
No |
70 |
>300 |
No ignition, grey fumes emitted |
364 |
No |
70 |
>300 |
No ignition, grey fumes emitted |
366 |
No |
70 |
>300 |
No ignition, grey fumes emitted |
368 |
No |
70 |
>300 |
No ignition, grey fumes emitted |
368 |
Yes |
70 |
>300 |
No ignition, grey fumes emitted |
368 |
Yes |
200 |
>300 |
No ignition, grey fumes emitted |
368 |
Yes |
400 |
2 |
Orange flame, grey fumes emitted |
366 |
Yes |
400 |
>300 |
No ignition, grey fumes emitted |
366 |
Yes |
600 |
>300 |
No ignition, grey fumes emitted |
366 |
Yes |
800 |
>300 |
No ignition, grey fumes emitted |
366 |
Yes |
1000 |
>300 |
No ignition, grey fumes emitted |
366 |
Yes |
1200 |
>300 |
No ignition, grey fumes emitted |
Room temperature: 19 to 22 °C
Atmospheric pressure: 100 to 103 kPa
Observed result: 368 °C
Description of key information
Auto-ignition temperature: 368°C at 100 -103 kPa.
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 368 °C
Additional information
The auto-ignition temperature of Tetrahydro Myrcenol has been determined to be 368 °C at an atmospheric pressure of 100 -103 kPa, using a procedure designed to be compatible with Method A.15 Auto-Ignition Temperature (Liquids and Gases) of Commission Regulation (EC) No 440/2008 of 30 May 2008.
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