Esterification products of salicylic acid and C13-(branched) alcohols

Auto flammability

Administrative data

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

5/1/2018 to 21/5/2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))

Version / remarks:

Council Regulation 440/2008, 30 May 2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Other quality assurance:

ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Test material

Test material information

Constituent 1

Reference substance name:

tridecyl 2-hydroxybenzoate

EC Number:

947-975-7

Molecular formula:

C20H32O3

IUPAC Name:

tridecyl 2-hydroxybenzoate

Specific details on test material used for the study:

Identification: Dermol TDSA
Appearance: Colourless to pale yellow clear liquid
Batch: P7202
Purity/Composition: UVCB
Test item storage: At room temperature
Stable under storage conditions until: 11 November 2021 (expiry date)
Additional information
Test Facility test item number: 209078/A
Purity/Composition correction factor: No correction factor required
Test item handling: No specific handling conditions required
Molecular structure: Not indicated
Molecular formula: C20H32O3
Molecular weight: 320
Test Item Characterization
The Sponsor provided to the Test Facility documentation of the identity, purity, composition, and stability for the test item(s). A Certificate of Analysis or equivalent document was provided to the Test Facility and is presented in Appendix 2.

Results and discussion

Auto-ignition temperature (liquids / gases)

Key result

Auto-ignition temperature:

ca. 255 °C

Atm. press.:

> 995 - < 1 007 hPa

Any other information on results incl. tables

Preliminary test           

The estimated auto-ignition temperature was 270°C.

Main study

The results of the main study on the determination of the auto-ignition temperature of the test item are given inTable 7.

Ignition of the test item within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. The maximum deviation between the three values was < 10°C. According to the guidelines, no further testing was required.

The lowest temperature at which ignition of the test item occurred was 257°C. This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of the test item of 255°C.

Table 7          
Auto-ignition Temperature of the Test Item

Test	Volume [μL]	Auto-ignition temperature [°C]	Ignition delay [s]	Colour of the flame	Minimum auto-ignition temperature [°C]
1	70	274	30	orange/blue	258
	150	261	79	orange/blue
	300	260	101	orange/blue
	450	259	209	orange/blue
	650	258	158	orange/blue
	800	261	188	orange/blue
2	100	264	41	orange/blue	259
	500	259	115	orange/blue
	900	260	189	orange/blue
3	200	262	90	orange/blue	257
	700	257	292	orange/blue
	850	258	282	orange/blue

Applicant's summary and conclusion

Conclusions:

Commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of Dermol TDSA.
The test item is auto-ignitable with an auto-ignition temperature of 255°C.
The atmospheric pressure was 995 and 1007 hPa.

Executive summary:

In this guideline (EU A.15) study, [conducted with GLP certification], The auto-ignition temperature of the test substance was found to be 255 °C at 1013 hPa.