Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 200-312-9 | CAS number: 57-10-3
Distribution modelling
Administrative data
- Endpoint:
- distribution modelling
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- 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: Mackay level I calculation
- Title:
- Distribution modelling of CAS 57-10-3
- Author:
- Dr. Knoell consult GmbH
- Year:
- 2 010
- Bibliographic source:
- Level 1 Fugacity-Based Environmental Equilibrium Partitioning Model, Trent University (2004), V3.00. Based on: Mackay, D. 2001. Multimedia Environmental Models: The Fugacity Approach-Second Edition. Lewis Publishers., Boca Raton, pp. 1-261
- Report date:
- 2010
Materials and methods
- Model:
- calculation according to Mackay, Level I
- Calculation programme:
- Level 1 - Fugacity-Based Environmental Equilibrium Partitioning Model (Trent University (2004), v3.00)
- Release year:
- 2 004
- Media:
- air - biota - sediment(s) - soil - water
Test material
- Reference substance name:
- Palmitic acid
- EC Number:
- 200-312-9
- EC Name:
- Palmitic acid
- Cas Number:
- 57-10-3
- Molecular formula:
- C16H32O2
- IUPAC Name:
- palmitic acid
- Details on test material:
- - Chemical Type: 1
- Molecular weight: 256 g/mol
- Data temperature: 25 °C
- Water solubility: 0.004 mg/L
- Vapour pressure: 0.00005 Pa
- Melting point: 61.8 °C
- log Kow: 7.00
Constituent 1
Results and discussion
Percent distribution in media
- Air (%):
- 0.069
- Water (%):
- 0.062
- Soil (%):
- 49.4
- Sediment (%):
- 50
- Susp. sediment (%):
- 0.321
- Biota (%):
- 0.031
- Aerosol (%):
- 0.072
Any other information on results incl. tables
Table 1: Distribution of octanoic acid in the environment
| Compartment | Z Value [mol/m³ Pa] | VZ [mol/pa] | Concentration [mol/m³] | Amount [%] |
| Air | 0.000403 | 2420000 | 0.000000045 | 0.0692 |
| Aerosol | 20900000 | 2510000 | 2338 | 0.0718 |
| Water | 0.313 | 2190000 | 0.0000349 | 0.0625 |
| Suspended particles | 321000 | 11200000 | 35.8 | 0.321 |
| Fish | 156000 | 1090000 | 17.4 | 0.0313 |
| Soil | 38438 | 1730000000 | 4.29 | 49.4 |
| Sediment | 83281 | 1750000000 | 9.30 | 50.0 |
| Total | - | 3500000000 | - | 100 |
Fugacity: 0.000112 Pa
Based on the level I modell the majority of the substance is calculated to partition into soil and sediment.
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
