Reaction mass of 2-ethylhexyl diphenyl phosphite and bis(2-ethylhexyl) phenyl phosphite and triphenyl phosphite

Auto flammability

Administrative data

Endpoint:

auto-flammability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2012

Reliability:

2 (reliable with restrictions)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2012

Report date:

2012

Materials and methods

Test guideline

Qualifier:

no guideline followed

Principles of method if other than guideline:

Initial testing: Approximately 100g of sample was placed in an open beaker, and heated on a hotplate. The temperature was monitored using a thermometer.
Further testing: Approximately 100g of sample was heated in a conical flask with the heat source provided from a hot plate. A condenser was used to collect any distillate from the substance, with a thermometer measuring the temperature of the test substance, and a second thermometer to monitor the condensate temperature. The sample was heated through a range of 100ºC to 220ºC, with the temperature of the condensate monitored throughout.

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

2-ethylhexyl diphenyl phosphite

EC Number:

239-716-5

EC Name:

2-ethylhexyl diphenyl phosphite

Cas Number:

15647-08-2

Molecular formula:

C20H27O3P

IUPAC Name:

phosphorous acid, 2-ethylhexyl diphenyl ester

Details on test material:

2-Ethylhexyl diphenyl phosphite (Lankromark LE98) Batch 016991

Results and discussion

Auto-ignition temperature (liquids / gases)

Auto-ignition temperature (liquids / gases) 1

Auto-ignition temperature:

> 224 °C

Atm. press.:

1 atm

Remarks on result:

other:

Auto-ignition temperature (liquids / gases) 2

Auto-ignition temperature:

260 °C

Atm. press.:

1 atm

Remarks on result:

other: Reported autoflammability of hydrolysis product 2-ethylhexanol.

Relative self-ignition temperature (solids)

Relative self-ignition temperature (solids) 1

Relative self-ignition temperature:

> 224 °C

Remarks on result:

other:

Remarks:

at atm. press. of 1.0 atm

Relative self-ignition temperature (solids) 2

Relative self-ignition temperature:

260 °C

Remarks on result:

other: Reported autoflammability of hydrolysis product 2-ethylhexanol.

Remarks:

at atm. press. of 1.0 atm

Applicant's summary and conclusion

Conclusions:

The sample was not observed to ignite during the test, therefore it can be concluded that the autoflammability temperature of 2-ethylhexyl diphenyl phosphite is greater than 224ºC. The reported autoflammability of 2-ethylhexanol is 260 degrees C, hydrolysis product, and could be used to predict the autoflammability of the substance.

Executive summary:

The sample was not observed to ignite during the test, therefore it can be concluded that the autoflammability temperature of 2-ethylhexyl diphenyl phosphite is greater than 224ºC. The reported autoflammability of 2-ethylhexanol is 260 degrees C, hydrolysis product.