Triisodecyl phosphite

Boiling point

Administrative data

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2011

Reliability:

2 (reliable with restrictions)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2011

Report date:

2011

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

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

Type of method:

distillation method

Test material

Test material information

Constituent 1

Reference substance name:

Triisodecyl phosphite

EC Number:

246-998-3

EC Name:

Triisodecyl phosphite

Cas Number:

25448-25-3

Molecular formula:

C30H63O3P

IUPAC Name:

tris(2-methylnonyl) phosphite

Details on test material:

Triisodecyl phosphite (Lankromark LE164) Batch 013109

Results and discussion

Boiling point

Decomposition:

yes

Decomp. temp.:

> 152 - <= 220 °C

Remarks on result:

other: Initial signs of decomposition started above 152 degrees C and continued up to highest temperature tested 220 degrees C

Any other information on results incl. tables

On heating the sample in an open beaker, a small amount of condensation was seen above the sample at 152ºC, and vapours were visible at 178ºC, although the sample did not show any signs of boiling. At 215ºC the sample was noted to be darker in colour, with some visible white solid. The test was terminated at 215ºC. On repeating the test in a closed apparatus, minimal signs of condensation were visible above 190ºC, there were no signs of reflux and no temperature rise was seen at the condenser. The test was terminated at 220ºC due to the limitations of the equipment used. No signs of boiling were noted.

Applicant's summary and conclusion

Conclusions:

It can therefore be concluded that triisodecyl phosphite decomposes or hydrolyses before the boiling point is reached. Signs of decomposition were observed in the range of 152-220 degrees C.

Executive summary:

It can therefore be concluded that triisodecyl phosphite decomposes or hydrolyses before the boiling point is reached. Signs of decomposition were observed in the range of 152-220 degrees C.