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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
distribution modelling
Type of information:
(Q)SAR
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
other: Modelled Data
Title:
EPISuite 4 Results for DPDP
Author:
US EPA
Year:
2010
Bibliographic source:
US EPA EPISUITE Program
Report date:
2010

Materials and methods

Model:
calculation according to Mackay, Level III
Calculation programme:
EPISuite 4
Release year:
2 010
Media:
other:

Test material

Constituent 1
Chemical structure
Reference substance name:
Isodecyl diphenyl phosphite
EC Number:
247-777-4
EC Name:
Isodecyl diphenyl phosphite
Cas Number:
26544-23-0
Molecular formula:
C22H31O3P
IUPAC Name:
Phosphorous acid, isodecyl diphenyl ester

Results and discussion

Percent distribution in media

Air (%):
0.08
Water (%):
2.71
Soil (%):
32.6
Sediment (%):
64.6
Other distribution results:
Fugacity results based on equal emissions to air, water, and soil. Assuming equal emissions (1000 kg/hr) into air, water, and soil.

Any other information on results incl. tables

 

Mass Amount (%)

Half-Life (Hrs)

Emissions (kg/hr)

Air

0.08

6.12

1000

Water

2.71

900

1000

Soil

32.6

1800

1000

Sediment

64.6

8100

0

Applicant's summary and conclusion

Conclusions:
Model results show distribution primarily to the soil and sediment based on equal emissions to air, water, and soil. These results are not unexpected based on the high Kow of DPDP. The distributions, however, do not consider the rapid hydrolysis of DPDP, which is expected to be the most important environmental fate characteristic of DPDP.
Executive summary:

Model results show distribution primarily to the soil and sediment based on equal emissions to air, water, and soil. These results are not unexpected based on the high Kow of DPDP. The distributions, however, do not consider the rapid hydrolysis of DPDP, which is expected to be the most important environmental fate characteristic of DPDP.