glyoxal … %; ethandial … %

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 company data

Title:

Unnamed

Year:

2008

Report date:

2008

Materials and methods

Model:

calculation according to Mackay, Level I

Calculation programme:

Level I Version 3.0

Release year:

2 004

Media:

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

Test material

Test material information

Constituent 1

Reference substance name:

Glyoxal

EC Number:

203-474-9

EC Name:

Glyoxal

Cas Number:

107-22-2

Molecular formula:

C2H2O2

IUPAC Name:

oxalaldehyde

Study design

Test substance input data:

The following physico-chemical properties of the substance were used to calculate the distribution:
- molecular mass:    58.04 g/mol
- data temperature: 20 °C
- log Kow:          -1.15 (4)
- water-solubility: 1.0E06 g/m³ (25 °C) (1)
- Henry´s law constant:0.117 Pa*m³/mol (5)
- vapour pressure: 2020 Pa (2)
- melting point: -25 °C (3)

source:
(1) measured: BASF (2002); BPD ID A3.05_01
(2) measured: BASF (2002); BPD ID A3.02_01
(3) measured: BASF (2002); BPD ID A3.01.1_01
(4) measured: BASF (2002); BPD ID A3.09_01
(5) calculated: Mackay L I programme

Environmental properties:

Volume Density Org. C Fish lipid
(m³) (kg/m³) (g/g) (g/g)
air 6.0E+09 1.19
water 7.0E+06 1000
soil 45000 1500 0.02
sediment 21000 1300 0.05
susp. part. 35.0 1500 0.167
fish 7.0 1000 0.05
aerosole 0.120 1500

Results and discussion

Percent distribution in media

Air (%):

4

Water (%):

96

Any other information on results incl. tables

Over time, the substance will preferentially distribute into the compartment water.