Pentyl salicylate

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Inititaion: December 14, 2010. Completion: February 18, 2011

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Study performed according to GLP and guideline

Qualifier:

according to guideline

Guideline:

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

GLP compliance:

yes

Specific details on test material used for the study:

-Commercial name: Amyl Salicylate
-Chemical nature: Mixture of Pentyl 2-hydroxybenzoate and 3-Methylbutyl 2-hydroxybenzoate
-Givaudan Code No: 8810001
- Physical state: Liquid
- Analytical purity: 98.8% (sum of two isomers)
- Lot/batch No.: VE00100713
- Expiration date: September 10, 2011

Auto-ignition temperature:

380 °C

Atm. press.:

101.325 kPa

Remarks on result:

other:

Temperature	Injected Sample Amount				Ignition delay
[°]	100	200	300	400	[s]
320	-	-	-	-
400	+				1
390	+				1
380	-	-	-	+	2
370	-	-	-	-

+: Positive response (flame, balst or deflagration)

-: Negative response (nothing or smoke only in a delay of 300 seconds)

Conclusions:

The lowest temperature giving a positive effect was 380°C. The injected volume was 400µl, the ignition delay was 2 s. At a temperature of 370°C no ignition was observed. Therefore the auto-ignition temperature of Amyl-salicylate is 380 ± 10°C.

Executive summary:

The auto-ignition temperature of Amyl Salicylate was determined according to Method A.15. Auto-Ignition Temperature (Liquids and Gases). The lowest temperature giving a positive effect was 380°C. The injected volume was 400 µl, the ignition delay was 2 s. At a temperature of 370°C no ignition was observed. The auto-ignition temperature was therefore considered to be 380 ± 10°C.

Description of key information

The auto-ignition temperature was considered to be 380 ± 10°C. 

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

370 °C

Additional information

The auto-ignition temperature of Amyl Salicylate was determined according to Method A.15, DIN 51794. At a temperature of 370°C no ignition was observed. The lowest temperature giving a positive effect was 380°C. The injected volume was 400 µl, the ignition delay was 2 s. The auto-ignition temperature was therefore considered to be 380 ± 10°C. The +/- 10 °C refers to the reproducibility of the method as specified by the guideline. According to the guidelines the lowest temperature giving a positive effect should be rounded down to the nearest multiple of 5 °C. However, since more temperatures in the range 370°C to 380°C were not tested a conservative value of 370°C has been chosen for the purposes of the CSA even though no ignition was observed at 370°C.