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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
distribution modelling
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
09 October 2015
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Validated calculation method

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Model:
calculation according to Mackay, Level III
Calculation programme:
EPISUITE
Release year:
2 012
Media:
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Details on test material:
- Name of test material (as cited in study report): Octadec-9-enoic acid (oleic acid),
- Smiles notation (if other than submission substance): CCCCCCCC\C=C/CCCCCCCC(=O)

Study design

Environmental properties:
Molecular Wt: 282.47
Henry's LC : 0.0000448 atm-m3/mole (HENRYWIN v3.20)
Log Kow: 7.73 (KOWWIN v1.68)
Log Koc: 4.4 (KOCWIN v2.00)

Results and discussion

Percent distribution in media

Air (%):
0.137
Water (%):
23.3
Soil (%):
74
Sediment (%):
2.57

Applicant's summary and conclusion

Conclusions:
The dissociated acid (oleic acid) is predicted to partition mainly to soil (approximately 74 %).
Executive summary:
Since the registered substance is known to dissociate in water, and has been shown to be readily biodegradable, distribution of dissociated acid (oleic acid) was predicted using a Level III Fugacity Model. The dissociated acid (oleic acid) is predicted to partition mainly to soil (approximately 74 %).