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Physical & Chemical properties

Auto flammability

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Reference
Endpoint:
auto-flammability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From March 29 to 30, 2006
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
GLP study following EU Method A.15 without any deviations
Reason / purpose:
reference to same study
Reason / purpose:
reference to other study
Qualifier:
according to
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. certificate)
Key result
Auto-ignition temperature:
ca. 264 °C
Atm. press.:
>= 98 - <= 98.1 kPa
Remarks on result:
other: ± 5 °C

Preliminary test:

Self ignition temperature (corrected) = 268°C at 98.0 kPa

 

Main test:

Self ignition temperature (corrected) = 264 ± 5°C at 98.0-98.1 kPa

 

Table 1: Observations

 

Assay No.

Self ignition

temperature (°C)

Ignition lag (s)

Maximal temperature of

the air recorded in the

centre of the test flask

after self ignition (°C)

Atmospheric pressure (kPa)

Observed

Corrected

Observed

Corrected

1

271

266

12

287

282

98

2

270

265

17

284

279

98

3

269

264

17

281

276

98

4

266

261

21

279

274

98.1

5

268

263

17

281

276

98

Conclusions:
The mean auto-ignition temperature (corrected) of terpineol multiconstituent was determined to be 264 ± 5°C at 98.0-98.1 kPa
Executive summary:

In an auto-ignition test performed in accordance with GLP and EU Method A.15, a known volume of terpinolene multiconstituent (100 µL) was injected into a heated open 250 mL Erlenmeyer flask containing air and the lowest ignition temperature was recorded using a thermocouple Type K (Nickel/Chrome). In the preliminary test, the auto-ignition temperature (corrected) was determined to be 268°C at 98.0 kPa.

 

In the main test, the mean auto-ignition temperature (corrected) of terpinolene monoconstituent was determined to be 264 ± 5°C at 98.0-98.1 kPa.

Description of key information

The auto-ignition temperature was determined in accordance with GLP and EU Method A.15: 264 °C at 98.0 kPa. 
 

Key value for chemical safety assessment

Additional information

Key study well described and conducted in accordance with GLP and EU-method A.15 without any deviation. Therefore the result of this key study may be used as the end point value.