Registration Dossier
Registration Dossier
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EC number: 205-597-3 | CAS number: 143-28-2
Other distribution data
Administrative data
- Endpoint:
- other distribution data
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 2005
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Assessment performed according to accepted models and
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 005
Materials and methods
- Principles of method if other than guideline:
- Method: other: Mackay Level I and Level III models
Test material
- Reference substance name:
- (Z)-octadec-9-enol
- EC Number:
- 205-597-3
- EC Name:
- (Z)-octadec-9-enol
- Cas Number:
- 143-28-2
- Molecular formula:
- C18H36O
- IUPAC Name:
- (9Z)-octadec-9-en-1-ol
Constituent 1
Results and discussion
Any other information on results incl. tables
INPUT DATA USED:
Molecular weight 268.5
Data temperature 25 deg C
Log Kow 7.07
Water Solubility 0.0077 mg/l
Vapour pressure 0.00198 Pa
Melting point 17 deg C
half life in air 4.8 h
half life in water and soil 720 h
RESULTS
The % environmental distribution calculated from the above parameters using the MacKay level 1 model is as follows:
Air 0.13%
Soil 97.6%
Water 9.38E-03%
Fish 5.51E-03%
Sediment 2.17%
The Level III program has also been used, with the default
model, using the same input parameters.The distribution between compartments obtained is as follows:
Release: To air To water To soil
% in air 8.01 0.000579 9.86E-06
% in water 1.17 2.65 0.0105
% in sediment 42.9 97.3 0.383
% in soil 47.9 0.00347 99.6
The results reflect that the ultimate fate of 9Z-octadecen-1-ol is dependent on its route of release into the environment. 9Z-octadecen-1-ol released to air would partially precipitate to soil and water. There is relatively little movement between soil and water, because transfer via the air compartment is very slow, for a substance of low volatility.In water, the adsorption coefficient of 9Z-octadecen-1-ol results in significant adsorption to sediment.
Applicant's summary and conclusion
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