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Administrative data

Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental starting date: 08 May 2017 Experimental completion date: 18 August 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
2-(2H-benzotriazol-2-yl)-4-tert-butylphenol
EC Number:
221-574-0
EC Name:
2-(2H-benzotriazol-2-yl)-4-tert-butylphenol
Cas Number:
3147-76-0
Molecular formula:
C16H17N3O
IUPAC Name:
2-(5-tert-Butyl-2-hydroxyphenyl)benzotriazole
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
Batch: 020021X3
Purity: 99.9%
Expiry date: 25 August 2017
Storage conditions: Room temperature in the dark

Results and discussion

Auto-ignition temperature (liquids / gases)
Auto-ignition temperature:
>= 505 - <= 515 K
Atm. press.:
>= 100.7 - <= 100.8 kPa

Any other information on results incl. tables

Results

Results of the auto-ignition temperature determination are shown in the following table:

Temperature
(ºC)
Clean
Flask
(Yes/No)
Weight (g) Ignition
Delay (s)
Observations
200 Yes 0.2 >300 No ignition. A small amount of grey fumes emitted
250 Yes 0.2 >300 No ignition. Grey fumes emitted.
300 Yes 0.2 >300 No ignition. Grey fumes emitted.
350 No 0.2 >300 No ignition. Grey fumes emitted.
400 No 0.2 >300 No ignition. Grey fumes emitted.
450 No 0.2 >300 No ignition. Grey fumes emitted.
500 Yes 0.2 >300 No ignition. Grey fumes emitted.
550 Yes 0.2 2 An orange flame. Grey fumes were emitted.
540 Yes 0.2 3 An orange flame. Grey fumes were emitted.
530 No 0.2 16 An orange flame. Grey fumes were emitted.
520 No 0.2 7 An orange flame. Grey fumes were emitted.
510 No 0.2 >300 No ignition. Grey fumes emitted.
512 No 0.2 10 An orange flame. Grey fumes were emitted.
510 Yes 0.2 11 An orange flame. Grey fumes were emitted.
508 Yes 0.2 >300 No ignition. Grey fumes emitted.
508 Yes 0.4 >300 No ignition. Grey fumes emitted.
508 Yes 0.6 >300 No ignition. Grey fumes emitted.
508 Yes 0.8 >300 No ignition. Grey fumes emitted.
508 Yes 1 >300 No ignition. Grey fumes emitted.

Room temperature: 20 to 22 °C

Atmospheric pressure: 100.7 to 100.8 kPa

Applicant's summary and conclusion

Conclusions:
The test item has been determined to have an auto-ignition temperature of 510 ± 5 °C.
Executive summary:

Auto-Ignition Temperature (Liquids and Gases). 510 ± 5 °C, 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.