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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:
From 2016-08-24 to 2017-05-09
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
2017-03-23
Specific details on test material used for the study:
- Analytical purity: >=99%
- Purity test date: 24 August 2016
- Lot/batch No.: BA5H22021
- Expiration date of the lot/batch: 24 August 2017
- Appearance: Colourless limpid liquid
- Storage: In darkness at room temperature
Key result
Auto-ignition temperature:
459 °C
Atm. press.:
973 hPa

Preliminary test

Injection No.

Volume of test item injected in the oven

(µL)

Temperature
(°C)

Auto-ignition

Maximal temperature of the air recorded in the center of the test flask after auto-ignition(°C)

Atm pressure

(kPa)

Relative humidity
(%)

Observed

Corrected

Y / N

Lag(s)

Observed

Corrected

1

70

99

100

N

/

/

/

99.0

22

2

70

150

151

N

/

/

/

98.9

22

3

70

200

201

N

/

/

/

98.7

22

4

70

249

250

N

/

/

/

98.7

22

5

70

308

309

N

/

/

/

98.6

26

6

70

351

352

N

/

/

/

98.4

26

7

70

401

402

N

/

/

/

98.3

25

8

70

451

452

N

/

/

/

98.2

34

9

70

491

492

Y

3

497

498

98.1

35

10

70

472

473

Y

4

476

477

98.0

35

11

70

460

461

N

/

/

/

98.2

43

12

90

460

461

Y

7

468

469

98.2

44

13

50

460

461

N

/

/

/

98.0

48

14

110

460

461

Y

7

471

472

97.9

47

15

130

460

461

Y

10

465

466

97.9

46

16

90

455

456

Y

10

465

466

97.9

44

17

110

455

456

Y

10

462

463

97.9

43

18

130

455

456

N

/

/

/

97.5

38

19

90

451

452

N

/

/

/

97.5

38

20

110

451

452

N

/

/

/

97.4

38

21

90

453

454

N

/

/

/

97.4

37

22

110

453

454

N

/

/

/

97.4

38

 

The lowest auto-ignition temperature was found between 454 °C and 456 °C (corrected values) with volumes of 90 µL and 110 µL.

The main test was conducted using 90 µL.

Main test

Volume of test item injected in the oven: 90µL

Only the auto-ignition runs for each assay are summarised in the following table:

 

 

Auto-ignition temperature(°C)

Auto-ignition

Maximal temperature of the air recorded in the center of the test flask after ignition(°C)

Atmospheric pressure
(kPa)

Relative humidity
(%)

Assay No.

Observed

Corrected

Lag(s)

Observed

Corrected

1

459

460

9

463

464

97.3

42

2

458

459

10

469

470

97.3

39

3

461

462

8

470

471

97.3

35

4

459

460

11

464

465

98.2

33

5

458

459

10

466

467

98.3

34

 

 

Conclusions:
The auto-ignition temperature of the test item was 459°C ± 3°C (corrected temperature).
Executive summary:

The auto-ignition temperature of the REACH substance was determined in a GLP-compliant study performed in accordance with EC A.15 method. The auto-ignition temperature of the test item was 459°C ± 3°C.

Description of key information

The auto-ignition temperature of the REACH substance was been determined in a GLP-compliant study performed in accordance with EC A.15 method.The auto-ignition temperature of the test item was 459°C ± 3°C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
459 °C

Additional information

The auto-ignition temperature of the REACH substance was been determined in a GLP-compliant study performed in accordance with standard methods, without deviations. The study is considered as reliable (Klimisch 1) and is selected as a key study for the endpoint.