Polysulfides, bis[3-(triethoxysilyl)propyl]

Flash point

Link to relevant study record(s)

Reference

Endpoint:

flash point of flammable liquids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2015-06-09 to 2016-01-18

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.9 (Flash-Point)

GLP compliance:

yes (incl. QA statement)

Type of method:

non-equilibrium method closed cup

Flash point apparatus:

Pensky-Martens apparatus

Key result

Flash point:

> 110 °C

Atm. press.:

1 013 hPa

Test 1:

		Flash point at atmospheric pressure [°C]	Flash point corrected to a pressure of 1013 hPa [°C]
Preliminary test		101.0	101.0
Main test 1	First run	106.0	106.0
	Second run	109.0	109.0
	Mean value	------	107.5

  *During the second run the admissible tolerance (acc. to DIN EN ISO 2719) of 18-28°C from the starting value (here: 78°C) was exceeded. Therefore the measurements had to be repeated. As the fact that the residual amount of test item batch used here was too small, it was decided to perform a completely new experiment with a new test item batch.

Test 2:

		Flash point at atmospheric pressure [°C]	Flash point corrected to a pressure of 1013 hPa [°C]
Preliminary test		130.0	130.0
Main test 1	First run	117.0	117.0
	Second run	116.0	116.0
	Third run	122.0	122.0
	Mean value	------	119.0

*The admissible tolerance (acc. to DIN EN ISO 2719) OF 18-28°C from the starting value was exceeded. Therefore the measurement had to be repeated.

Because the difference between the two valid main test measurements (2^ndand 3^rdrun; here: 6°C) was >3.5 (mean value x 0.029), a second main test was necessary.

		Flash point at atmospheric pressure [°C]	Flash point corrected to a pressure of 1013 hPa [°C]
Main test 2	First run	110.0	110.0*
	Second run	No flash point until 130°C	------
	Mean value	------	------

*The admissible tolerance (acc. to DIN EN ISO 2719) OF 18-28°C from the starting value was exceeded. Therefore the measurement had to be repeated.

It was decided to stop the measurements at this point, because no more additional information could be expected from further testing.

Reviewer's comments:

Although, no mean flash point was reported by the study author, the flash point of the substance was interpreted to be >110°C at 1013 hPa by the reviewer based on the measured results during the second experiment.

Interpretation of results:

GHS criteria not met

Conclusions:

The flash point of the substance was interpreted to be > 110°C at 1013 hPa by the reviewer based on the measured results during the second experiment.

Description of key information

Flash point: > 110°C at 1013 hPa (EU Method A.9)

Key value for chemical safety assessment

Flash point at 101 325 Pa:

110 °C

Additional information

A measured flash point of > 110°C at 1013 hPa was determined for this substance using a rapid equilibrium closed-cup method in accordance with EU Method A.9 Test Guideline and in compliance with GLP. The result is considered to be reliable and is selected as key study.

 

In available secondary sources to which reliability could not be assigned, flash point limit of > 100°C and value of 106°C at 1013 hPa were reported for the substance.

 

A flash point of > 110°C at 1013 hPa and a boiling point ≥ 269°C at 1013 hPa, indicate that the substance should not be classified for flammability according to the criteria of Regulation (EC) No. 1272/2008.