Branched and linear octadecanoic acid, esters with glycerol oligomers

Flash point

Link to relevant study record(s)

Reference

Endpoint:

flash point, other

Type of information:

experimental study

Adequacy of study:

key study

Study period:

05 Apr 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

GLP giudeline study

Qualifier:

according to guideline

Guideline:

EU Method A.9 (Flash-Point)

Version / remarks:

adopted in 2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

National Institute of Pharmacy and Nutrition, Budapest, Hungary

Type of method:

closed cup

Flash point apparatus:

other: MINIFLASH FLP, Grabner Instruments, Austria

Key result

Flash point:

> 200 °C

Atm. press.:

1 013 hPa

Remarks on result:

other: Closed cup method similar to Pensky-Marten: a correction to 1013 hPa is done automatically.

Results

The instrument was checked measuring the flash point of Flash Point Reference Standard as reference material. The instrument parameters can be seen in Table 1.

Table 1: Instrument parameters for the reference material Flash Point Reference Standard
Initial temperature	90 °C
Final temperature	115 °C
Heating rate	5.5 °C/min
Frequency of ignition	1.0 °C
Air pulse	0.6 sec
Threshold	20.0 kPa

 

The measured flash point of the Flash Point Reference Standard is 108 °C (corrected value) which is in the acceptance criteria (108 ± 2 °C).

 

In case of the test item two replicates were carried out after the preliminary test. The parameters used for the flash point determinations are presented in Table 2 in detail.

 

Table 2: Instrument parameters for the test item

	Preliminary test                                       Main test
Initial temperature		30 °C	180 °C
Final temperature		200 °C	200 °C
Heating rate		5.5 °C/min	1 °C/min
Frequency of ignition		1.0 °C	1.0 °C
Air pulse		0.6 sec	0.6 sec
Threshold		20.0 kPa	20.0 kPa

No flash point of the test item was observed until 200 °C.

 

Deviation to the study plan

The study was performed with the following deviation:

1. Using different standard during the study

In the study plan naphthalene was given as standard. During the study Flash Point Reference Standard is used.

Reason: typological error

2. Basis of study

In the study plan:

European Economic Community (EEC) directive 92/69, Annex V, Part A, Methods for the determination of physico-chemical properties, A.9 ”Flash point”, EEC Publication No. L383, December 1992.

Real:

Commission Regulation (EC) No 440/2008 of 30 May 2008 laying down test methods pursuant to Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH), Method A.9, Official Journal of the European Union L 142 of 31 May 2008.

The deviations have no impact on the study. No deviations from the method but only from the study plan.

Description of key information

> 200.0 °C (EU Method A.9 (Flash-Point), closed cup)

Additional information

Pressure not given