Registration Dossier

Environmental fate & pathways

Distribution modelling

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Administrative data

Endpoint:
distribution modelling
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: accepted calculation method

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2017
Report Date:
2017

Materials and methods

Model:
calculation according to Mackay, Level III
Calculation programme:
US EPA EPI SUITE v4.00
Release year:
2 009
Media:
other: air-water-soil-sediment

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid
Details on test material:
- Name of test material (as cited in study report): diisotridecyl adipate

Study design

Test substance input data:
- Molar mass: 510.85
- Water solubility: 0.001 mg/L
- Vapour pressure: 4.77E-09 mm Hg (calculated, program MPBPVP)
- log Pow: 13.03 (calculated, program KOWWIN)
- log Koc: 1.21E07 (calculated, program KOCWIN MCI method)
- Melting point: 114°C (calculated, program MPBPVP)
- Reaction half-life estimates for
- Air: 13.3 hrs
- Water: 900 hrs
- Soil: 1.8E03
- Sediment: 8.1E03
- Suspended sediment: no data
- Aerosols: no data
- Aquatic biota: no data

Results and discussion

Percent distribution in media

Air (%):
0.28
Water (%):
14.8
Soil (%):
84.9
Sediment (%):
0.02

Any other information on results incl. tables

Level II Fugacity Model

 

 

Mass Amount
[%]

Half-Life
[hr]

Emission
[kg/hr]

Air

0.28

13.3

1000

Water

14.8

900

1000

Soil

84.9

1800

1000

Sediment

0.02

8100

0

 

Persistence Time: 1310 hr (ca. 55 days)

Applicant's summary and conclusion

Conclusions:
Emissions of diisotridecyl adipate will distribute mostly in soil (84.9%) and to a lesser extent in water (14.8%). The portion in air is considerably less (0.28%) with a minimal fraction in sediment (0.02%).
The estimated persistence time is 1310 hr (ca. 55 days).
Executive summary:

Estimates obtained from Level III fugacity distribution modelling using US EPA EPI Suite v4.00, model component Level III fugacity model, indicate that emissions of diisotridecyl adipate will distribute mostly in soil (84.9%) and to a lesser extend in water (14.8%). The fraction in air (0.28%) and in sediment (0.02%) is minimal. Emissions will almost completely accumulate in soil and water.

 

The estimated persistence time is 1310 hr (ca. 55 days) (MWC 2010).