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Physical & Chemical properties

Auto flammability

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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
02. Aug. 2018
Reliability:
1 (reliable without restriction)
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:
Commission Regulation (EC) No. 440/2008 of 30. May 2008, Method A.15 “Auto Igni-tion Temperature (liquids and gases)“, published on 31. May 2008 (referring to DIN 51794 “Bestimmung der Zündtemperatur“, dated May 2003)
Deviations:
no
Remarks:
No deviations from the guideline were ascertained
GLP compliance:
yes (incl. QA statement)
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Batch no: 06386
- Expiration date of the lot/batch: June 2020
- Purity test date: July 2017

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
The test item was stored in a closed vessel at 3.3 -8.0°C away from light.
Except for the times below:
At 24. Jul. 2017 between 15:36 – 16:04 o’clock the temperature was 8.0 -9.0 °C.
At 02. Oct. 2017 between 10:40 – 11:25 o’clock the temperature was 6.1 – 10.2 °C.
At 08. May 2018 between 09:20 – 09:43 o’clock the temperature was 5.1 – 10.8 °C.
At 08. May 2018 between 11:00 – 11:23 o’clock the temperature was 4.4 – 12.2 °C.
Key result
Remarks on result:
not determinable
Remarks:
test item can be considered to have no auto ignition temperature till 650°C under the test conditions.

Determination of the viscosity

The test item was visually compared with the standard liquid Viscosity (50 mPa*s). The viscosity of the test item was below 50 mPa*s.

Pre-Determination

The ignition attempts of the pre-determination program are presented in the following table.

Table: Ignition attempts pre-test

Selected T*

T Vessel

Drops used

Ignition?

Observations

°C

°C

#

yes/no

 

300

200.1

5

no

-

300

220.4

5

no

-

300

242.1

5

no

-

300

262.8

5

no

-

300

285.2

5

no

-

300

306.6

5

no

-

300

329.9

5

no

smoke

300

353.3

5

no

smoke

300

376.4

5

no

smoke

498

398.0

5

no

-

498

419.0

5

no

smoke

498

440.3

5

no

smoke

498

461.6

5

no

smoke

498

484.0

5

no

smoke

498

505.5

5

no

smoke

498

524.5

5

no

smoke

498

544.9

5

no

smoke

498

564.7

5

no

smoke

685

585.0

5

no

smoke

685

605.1

5

no

smoke

685

625.0

5

no

smoke

685

645.2

5

no

smoke

 

No ignition occurred up to 376.4 °C. Therefore, the pre-test was continued with a selected temperature of 498 °C at the ZPA3. As no ignition occurred, the pre-test was continued with a selected temperature of 585 °C. The determination was performed up to 651.1°C without finding an ignition. Using a constant heating rate, the subsequent ignition trials were conducted every 20 ± 5 K.

The ignition trials were conducted on 02. Aug. 2018

Atmospheric pressure during the pre-test was 1005.6 mbar.

Conclusions:
The test item can be considered to have no auto ignition temperature till 650°C under the test conditions (EU-Method A.15 and DIN 51794)
Executive summary:

As no ignition was found during the Pre-Determination Program from 200°C till 650°C, no auto-ignition temperature according to EU A.15 of the test item can be stated.

The test item can be considered to have no auto ignition temperature till 650°C under the test conditions.

The study was conducted according to procedure and demands of EU-Method A.15 and DIN 51794.

No observations were made which might cause doubts concerning the validity of the study outcome.

Description of key information

Auto-Ignition temperature according to EU A.15

Key value for chemical safety assessment

Additional information

The study was conducted according to procedure and demands of EU-Method A.15 and DIN 51794. No observations were made which might cause doubts concerning the validity of the study outcome.

As no ignition was found during the Pre-Determination Program from 200°C till 650°C, no auto-ignition temperature according to EU A.15 of the test item can be stated.

The test item can be considered to have no auto ignition temperature till 650°C under the test conditions.