Reaction Mass of (4R)-4-isopropenyl-1-methylcyclohexene and (4R)-4-(2-methoxypropan-2-yl)-1-methylcyclohexene

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:

13 September 2016 - 23 March 2017

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 study validity criteria were met.

Qualifier:

according to guideline

Guideline:

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

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: 4 ºC in the dark and 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: no
- Preliminary purification step (if any): no
- 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): n/a

OTHER SPECIFICS: n/a

Key result

Auto-ignition temperature:

>= 249 - <= 259 °C

Atm. press.:

>= 100.5 - <= 100.6 kPa

Table 1       Results of the auto-ignition temperature determination

Test Temperature (ºC)	Test Volume (µL)	Ignition Delay (s)	Observation
200 (clean flask)	70	> 300	No ignition. Grey fumes were emitted.
250 (clean flask)	70	> 300	No ignition. Grey fumes were emitted.
300 (clean flask)	70	2	An orange flame. Grey fumes were emitted.
290	70	3	An orange flame. Grey fumes were emitted.
280	70	3	An orange flame. Grey fumes were emitted.
270	70	7	An orange flame. Grey fumes were emitted.
260	70	17	An orange flame. Grey fumes were emitted.
258	70	14	An orange flame. Grey fumes were emitted.
256 (clean flask)	70	21	An orange flame. Grey fumes were emitted.
254 (clean flask)	70	> 300	No ignition. Grey fumes were emitted.
254 (clean flask)	200	25	No ignition. Grey fumes were emitted.
252 (clean flask)	200	> 300	No ignition. Grey fumes were emitted.
252 (clean flask)	400	> 300	No ignition. Grey fumes were emitted.
252 (clean flask)	600	> 300	No ignition. Grey fumes were emitted.
252 (clean flask)	800	> 300	No ignition. Grey fumes were emitted.
252 (clean flask)	1000	> 300	No ignition. Grey fumes were emitted.

Conclusions:

The test item has been determined to have an auto-ignition temperature of 254 ± 5 °C at 100.5 to 100.6 kPa.

Executive summary:

The auto-ignition temperature of Reaction Mass of (4R)-4-isopropenyl-1-methylcyclohexene and (4R)-4-(2-methoxypropan-2-yl)-1-methylcyclohexene have been determined as 254 ± 5 °C at 100.5 to 100.6 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.

Description of key information

Auto-Ignition Temperature = 254 ± 5 °C (100.5 to 100.6 kPa); EU Method A.15; Anon. (2017)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

254 °C

Additional information

The auto-ignition temperature of the test item was determined as 254 ± 5 °C at 100.5 to 100.6 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.