Schiff bases, benzylidene, C16-18 (even numbered) and C18-unsaturated alkyl

Auto flammability

Administrative data

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Experimental starting date: 30 March 2016 Experimental completion date: 15 April 2016

Reliability:

1 (reliable without restriction)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2016

Report date:

2016

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

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

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

Schiff bases, benzylidene, C16-18 (even numbered) and C18-unsaturated alkyl

Molecular formula:

Not applicable - UVCB

IUPAC Name:

Schiff bases, benzylidene, C16-18 (even numbered) and C18-unsaturated alkyl

Constituent 2

Reference substance name:

Benzaldehyde

EC Number:

202-860-4

EC Name:

Benzaldehyde

Cas Number:

100-52-7

Molecular formula:

C7H6O

IUPAC Name:

benzaldehyde

Test material form:

liquid

Specific details on test material used for the study:

Information as provided by the Sponsor. The Certificate of Analysis provided by the Sponsor is presented as Annex 3 (Please see Attachment Section of this Summary.

Identification: PC 1427
Appearance/Physical state: Brown liquid
Batch: 1214SA002
Purity: 100%
Structure: The sponsor provided a structure on which the predictions of explosive and oxidizing properties were made. However, they wish the structure to remain confidential and therefore it has been omitted from this report.
Expiry date: 05 January 2017
Storage conditions: Room temperature in the dark

Results and discussion

Auto-ignition temperature (liquids / gases)

Auto-ignition temperature:

286 °C

Atm. press.:

>= 100.6 - <= 101.4 kPa

Any other information on results incl. tables

Results

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

Table 4

Test temperature (ºC)	Test volume (µL)	Ignition delay (s)	Observations
200 (clean flask)	70	>300	No ignition.
250 (clean flask)	70	>300	No ignition.
300 (clean flask)	70	27	An orange flame. Grey fumes were emitted.
290	70	39	An orange flame. Grey fumes were emitted.
280	70	>300	No ignition. Grey fumes were emitted.
284	70	>300	No ignition. Grey fumes were emitted.
286	70	>300	No ignition. Grey fumes were emitted.
288 (clean flask)	70	>300	No ignition. Grey fumes were emitted.
288 (clean flask)	200	>300	No ignition. Grey fumes were emitted.
288 (clean flask)	400	>300	No ignition. Grey fumes were emitted.
288 (clean flask)	600	77	An orange flame. Grey fumes were emitted.
286 (clean flask)	600	59	An orange flame. Grey fumes were emitted.
284 (clean flask)	600	>300	No ignition. Grey fumes were emitted.
284 (clean flask)	800	>300	No ignition. Grey fumes were emitted.
284 (clean flask)	1000	>300	No ignition. Grey fumes were emitted.
284 (clean flask)	1200	>300	No ignition. Grey fumes were emitted.
284 (clean flask)	1400	>300	No ignition. Grey fumes were emitted.

Room temperature: 18 to 20 °C
Atmospheric pressure: 100.6 to 101.4 kPa

Applicant's summary and conclusion

Conclusions:

The test item has been determined to have an auto-ignition temperature of 286 ± 5 °C.

Executive summary:

The determination was carried out 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.

*Based on, Anon (1987), Electrical Apparatus for Explosive Gas Atmospheres. Part 4: Method of Test for Ignition Temperature. IEC Publications79-4,P1-19.

Conclusion

The test item has been determined to have an auto-ignition temperature of 286 ± 5 °C.