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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
phototransformation in water
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
2010
Reliability:
2 (reliable with restrictions)
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Referenceopen allclose all

Reference Type:
other: model results
Title:
EPISUITE 4.0 Report on Diisodecylphenyl Phosphite (PDDP, CAS No. 25550-98-5)
Author:
US EPA
Year:
2010
Reference Type:
other: model result
Title:
EPISUITE 4.0 Report on Triisodecyl Phosphite (TDP, CAS No. 25448-25-3)
Author:
US EPA
Year:
2010
Reference Type:
other: model result
Title:
EPISUITE 4.0 Report on Diphenyl isodecyl Phosphite (DPDP, CAS No. 26544-23-0)
Author:
US EPA
Year:
2010

Materials and methods

Study type:
other:
Test guideline
Deviations:
not specified
Principles of method if other than guideline:
Modeled results using EPISUITE 4.0 (HYDROWIN v. 2.00) for the 3 constituent chemicals of the substance - diisodecylphenyl phosphite (DDPP), triisodecyl phosphite (TDP), and diphenyl isodecyl phosphite (DPDP).
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Reaction products of triphenyl phosphite and isodecanol (1:2)
EC Number:
701-374-4
Cas Number:
25550-98-5
Molecular formula:
C26H47O3P
IUPAC Name:
Reaction products of triphenyl phosphite and isodecanol (1:2)
Details on test material:
3 constituent chemicals in the substance - diisodecylphenyl phosphite (DDPP), triisodecyl phosphite (TDP), and diphenyl isodecyl phosphite (DPDP).

Study design

Light source:
sunlight
Details on test conditions:
Model to calculate aqueous base/acid catalyzed hydrolysis at 25 °C
Reference substance:
no
Dark controls:
no

Results and discussion

Any other information on results incl. tables

Rate constants can NOT be calculated for phosphite chemical structures (HYDROWIN v. 2.0).

Applicant's summary and conclusion

Validity criteria fulfilled:
no
Conclusions:
Rate constants can NOT be calculated for this structure (HYDROWIN v. 2.0).
Executive summary:

While the phototranformation in water cannot be determined for this substance, the rapid direct hydrolysis in water of these substances is likely to be the dominant environmental fate characteristic of this substance.