Triphenyl phosphate

Additional information on environmental fate and behaviour

Administrative data

Endpoint:

additional information on environmental fate and behaviour

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

3 (not reliable)

Rationale for reliability incl. deficiencies:

other: Unrealistic test conditions (also assessed by OECD)

Data source

Reference

Reference Type:

publication

Title:

Unnamed

Year:

1986

Materials and methods

Test guideline

Qualifier:

no guideline available

Principles of method if other than guideline:

Thermogravimetric analysis followed by dynamic headspace GC/MS

GLP compliance:

no

Type of study / information:

Analysis of products produced from thermally stressed plastics - TPP from thermolysis of polymer powder

Test material

Test material information

Constituent 1

Reference substance name:

Triphenyl phosphate

EC Number:

204-112-2

EC Name:

Triphenyl phosphate

Cas Number:

115-86-6

Molecular formula:

C18H15O4P

IUPAC Name:

triphenyl phosphate

Specific details on test material used for the study:

Plastics containing TPP

Results and discussion

Any other information on results incl. tables

Heating a commercially polycarbonate specimen as powder (extremely high surface) 
showed weight loss beginning at 420 °C, whereas a commercially  polyphenylene 
specimen as powder showed weight loss beginning at 190 °C.  Injection molding 
temperatures for polycarbonate polymers are between 249  to 315 °C.
GC/MS analysis of vapours resulting from heating the polycarbonat powder and 
the polyphenylene powder to 250 °C yielded weight loss of 1 % and 8 %  resp. 
and weight fractions of 0.05 % TPP and 3.6 % TPP resp. refering to  the loss 
in weight.

Applicant's summary and conclusion

Conclusions:

A method is described for determing TPP released from thermally stressed polymers. However, the test conditions are unrealistic compared to normal use conditions