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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Administrative data

Endpoint:
distribution modelling
Type of information:
calculation (if not (Q)SAR)
Remarks:
estimated by calculation
Adequacy of study:
key study
Study period:
2009-10-22
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method

Data source

Reference
Reference Type:
other: Mackay Level I calculation
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Model:
calculation according to Mackay, Level I
Calculation programme:
v.3.0
Release year:
2 004
Media:
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Chemical structure
Reference substance name:
Styrene
EC Number:
202-851-5
EC Name:
Styrene
Cas Number:
100-42-5
Molecular formula:
C8H8
IUPAC Name:
ethenylbenzene

Study design

Test substance input data:
- Molar mass: 104.15 g/mol
- Data temperature: 20 °C
- Water solubility: 300 g/m3
- Vapour pressure: 667 Pa
- log Pow: 2.96
- Melting point: -31°C

Results and discussion

Percent distribution in media

Air (%):
98.6
Water (%):
1.21
Soil (%):
0.09
Sediment (%):
0.09
Susp. sediment (%):
0
Biota (%):
0
Aerosol (%):
0

Applicant's summary and conclusion

Executive summary:

Distribution of styrene in the environment was modelled according to Mackay Level I. 98.9% were distributed in Air.