4,4,13,13-tetraethoxy-3,14-dioxa-8,9-dithia-4,13-disilahexadecane

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:

2014-10-08 to 2014-11-06

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.9 (Flash-Point)

Deviations:

no

Qualifier:

according to guideline

Guideline:

ISO 2719 (Determination of flash point - Pensky-Martens closed cup method)

Version / remarks:

2002

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

non-equilibrium method closed cup

Flash point apparatus:

Pensky-Martens apparatus

Key result

Flash point:

136 °C

Atm. press.:

1 013 hPa

Results:

Test 1:

Table 1: Flash point result of Test 1

		Flash point at atmospheric pressure [°C]	Flash point corrected to a pressure of 1013 hPa [°C]
Preliminary test		140	140.5
Main test 1	First run	139	139.5
	Second run	133	133.5
Main test 2	First run	131	131.5*
	Second run	**	**

*deviation from preliminary test too large (> 5°C); measurement not suitable for test evaluation

**measurement not possible; residual sample amount too little.

 

Because the difference between the two main test measurements was > 2°C, a second main test was necessary.

Therefore, due to the above mentioned facts (mean deviations > 5°C) and difficulties, it was decided after consultations with the study monitor to repeat the test completely with a new batch of the test item.

 

Test 2:

Table 2: Flash point result of Test 2

		Flash point at atmospheric pressure [°C]	Flash point corrected to a pressure of 1013 hPa [°C]
Preliminary test		139	139
Main test 1	First run	132	132
	Second run	134	134
Main test 2	First run	136	136
	Second run	**	**

**Result not evaluated; variation limit too large.

 

Interpretation of results:

GHS criteria not met

Conclusions:

A flash point value of 136°C at 1013 hPa was determined for the substance using a relevant test method and in compliance with GLP. The result is considered reliable.

Description of key information

Flash point: 136°C at 1013 hPa ( ISO 2719)

Key value for chemical safety assessment

Flash point at 101 325 Pa:

136 °C

Additional information

A measured flash point value of 136°C at 1013 hPa was determined for the submission substance using a non-equilibrium closed-cup method in accordance with ISO 2719 and in compliance with GLP. The result is considered to be reliable and is selected as key study.

 

Flash point values of 129°C at 1013 hPa and limit of > 100°C at 1013 hPa were reported for the substance in secondary sources to which reliability could not be assigned.

 

A measured flash point of 136°C at 1013 hPa and a measured boiling point of 269°C at 1013 hPa, indicate that the substance should not be classified for flammability in accordance with the criteria of Regulation (EC) No. 1272/2008.