3,4-dihydro-2-methoxy-2H-pyran

Distribution modelling

Administrative data

Endpoint:

distribution modelling

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Scientifically acceptable method.

Data source

Reference

Reference Type:

other: model calculation report

Title:

Unnamed

Year:

2007

Materials and methods

Model:

calculation according to Mackay, Level I

Release year:

2 007

Media:

air - biota - sediment(s) - soil - water

Test material

Test material information

Constituent 1

Reference substance name:

3,4-dihydro-2-methoxy-2H-pyran

EC Number:

224-698-3

EC Name:

3,4-dihydro-2-methoxy-2H-pyran

Cas Number:

4454-05-1

Molecular formula:

C6H10O2

IUPAC Name:

2-methoxy-3,4-dihydro-2H-pyran

Study design

Test substance input data:

The calculation is based on the following physical and chemical properties:
- molecular mass (g/mole): 114.15
- log Kow: 1,32
- water solubility (g/m³): 16000
- vapour pressure (Pa): 12,40 hPa
- melting point (°C): 22,8
- Data Temperature (°C): 25

The Henry's Law Constant calculated by the program itself is 8,85 Pa*m³/mole.

Environmental properties:

Model parameters:

Volume Density org. C fish lipid
[m3] [kg/m3] [g/g] [g/g]
air 6.00E+09 1.185 - -
water 7.00E+06 1000 - -
soil 45000 1500 0.02 -
sediment 21000 1300 0.05 -
susp. sed. 35 1500 0.167 -
fish 7 1000 - 0.05
aerosol 0.12 1500 - -

Results and discussion

Percent distribution in media

Air (%):

75.3

Water (%):

24.6

Soil (%):

0.04

Sediment (%):

0.04

Susp. sediment (%):

0

Biota (%):

0

Aerosol (%):

0

Any other information on results incl. tables

RS-Freetext:
The substance will be mainly distributed to the compartments air and  water:
- air:      75.3 %
- water:    24.6 %
- soil:     0.04 %
- sediment: 0.04 %