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Administrative data

Endpoint:
auto-flammability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
09/10/2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study according to international guideline (EU Method A.15) under GLP. No deviations from guideline reported.
Cross-referenceopen allclose all
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to other study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report date:
2014

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: DIN 51794 (2003): Determination of Ignition Temperature
Deviations:
no
Principles of method if other than guideline:
Not relevant
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Reference substance name:
91844-92-7
Cas Number:
91844-92-7
IUPAC Name:
91844-92-7
Constituent 2
Reference substance name:
Cymbopogon flexuosus, ext.
EC Number:
295-161-9
EC Name:
Cymbopogon flexuosus, ext.
IUPAC Name:
295-161-9
Constituent 3
Reference substance name:
Lemongrass oil
IUPAC Name:
Lemongrass oil
Test material form:
other: liquid
Details on test material:
Appearance: Yellow liquid
Storage conditions: Ambient temperature, keep container tightly closed

Results and discussion

Auto-ignition temperature (liquids / gases)
Auto-ignition temperature:
240 °C
Atm. press.:
>= 995.6 - <= 996.1 hPa
Remarks on result:
other:

Any other information on results incl. tables

Preliminary test

An approximate value of the ignition temperature of the test item was firstly determined by the preliminary test. Table 1 gives the result of the preliminary test. An ignition is denoted as “+” and no ignition is denoted as “-“. 5 drops were put into the Erlenmeyer flask at each temperature.

Table 1: Results of the preliminary test

 

Preliminary test

Temperature / °C

302

285

256

262

Ignition / +/-

+

+

-

+

 

Atmospheric pressure: 995.3 hPa

In the preliminary test, the lowest temperature at which an ignition occurred was 262 °C.

Main Test

The results of the main test are given in the following Tables 2 and 3. An ignition is denoted as “+” and no ignition is denoted as “-“.

Table 2:    Determination of the first main test series

1stMain test series

Temperature / °C

Droplets

Ignition

263

10

+

258

10

+

252

10

+

248

10

+

244

10

+

237

10

-

236

9

-

236

8

-

237

7

-

237

6

-

237

5

-

237

4

-

236

3

-

237

2

-

237

1

-

Atmospheric pressure: 995.7 - 996.1 hPa


Table 3:    Determination of second and third main test series

2ndMain test series

3rdMain test series

Temperature / °C

Droplets

Ignition

Temperature / °C

Droplets

Ignition

245

10

+

244

10

+

237

10

-

235

10

-

237

9

-

236

9

-

237

8

-

235

8

-

237

7

-

236

7

-

236

6

-

236

6

-

237

5

-

235

5

-

237

4

-

236

4

-

236

3

-

235

3

-

237

2

-

236

2

-

237

1

-

236

1

-

Atmospheric pressure: 995.6 hPa

Atmospheric pressure: 995.9 hPa

The lowest temperatures at which an ignition occurred in the main test are given in Table 4.

Table 4:         Lowest temperatures at which an ignition occurred

Main test series

Lowest temperatures of an ignition

Highest temperatures without an ignition

Atmospheric Pressure

1

244 °C

237 °C

995.7 - 996.1 hPa

2

245 °C

237 °C

995.6 hPa

3

244 °C

236 °C

995.9 hPa

Applicant's summary and conclusion

Conclusions:
The auto-ignition temperature of Lemongrass Oil is 240 °C measured at an atmospheric pressure from 995.6 to 996.1 hPa.
Executive summary:

The auto-ignition temperature of Lemongrass oil was determined according to EU Method A15 under GLP using a Cylindrical resistance furnace. The auto-ignition temperature was found to be 240 °C at an atmospheric pressure from 995.6 to 996.1 hPa.

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