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EC number: 201-122-9 | CAS number: 78-51-3
Distribution modelling
Administrative data
- Endpoint:
- distribution modelling
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Accepted calculation method
Data source
Materials and methods
- Model:
- calculation according to Mackay, Level I
- Calculation programme:
- Level 1 Model - Fugacity-based environmental equilibrium partitioning model; programme v3.0, Trent University, 2004.
- Media:
- other: air - water - soil - sediment
Test material
- Reference substance name:
- Tris(2-butoxyethyl) phosphate
- EC Number:
- 201-122-9
- EC Name:
- Tris(2-butoxyethyl) phosphate
- Cas Number:
- 78-51-3
- Molecular formula:
- C18H39O7P
- IUPAC Name:
- tris(2-butoxyethyl) phosphate
- Details on test material:
- - Name of test material: tris(2-butoxethyl) phosphate):
Constituent 1
Study design
- Test substance input data:
- - Molar mass: 398.54
- Data temperature: 25°C
- Water solubility: 663.5 mg/L
- Vapour pressure: 1.52E-5 Pa
- log Pow: 3.75
- Melting point :-70 deg C
Results and discussion
Percent distribution in media
- Air (%):
- 0
- Water (%):
- 16.4
- Soil (%):
- 81.7
- Sediment (%):
- 1.82
- Susp. sediment (%):
- 0.057
- Biota (%):
- 0.005
- Aerosol (%):
- 0
Any other information on results incl. tables
Table
5.4.3/1 :
Environmental distribution (as %) calculated from the above parameters
using the Makay Level 1 Model.
Compartment |
% |
Air |
2.92E-05% |
Soil |
81.7% |
Water |
16.4% |
Fish |
4.6E-03% |
Sediment |
1.82% |
Applicant's summary and conclusion
- Conclusions:
- According calculations using Makay Level 1 Model, TBEP is mainly distributed in soil (81.7%) and in less extent in water (16.4%). However this does not take into account any biodegradation of the substance. As TBEP is readily biodegradable the substance will be removed in the STP and the remaining concentrations in each compartment will be much lower.
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