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Environmental fate & pathways

Distribution modelling

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Administrative data

Endpoint:
distribution modelling
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
supporting study
Study period:
No data
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Accepted calculation method
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2001

Materials and methods

Model:
calculation according to Mackay, Level III
Calculation programme:
Mackay, Level III
Media:
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Chemical structure
Reference substance name:
Reaction mass of divinylbenzene and ethylstyrene
EC Number:
910-757-7
Cas Number:
N/A
Molecular formula:
Divinylbenzene: C10H10 Ethylstyrene: C10H12
IUPAC Name:
Reaction mass of divinylbenzene and ethylstyrene
Details on test material:
Divinylbenzen (m-Divinylbenzen: 32%, p-Divinylbenzen: 68%)

Study design

Test substance input data:
Distributions were calculated with following factors.

m-Divinylbenzen
molecular weight: 130.19
melting point [C]: -67
vapor pressure [Pa]: 133
water solubility [g/m3]: 20
log Kow: 4.15
half life [h] in air: 7
in water: 240,000
in soil: 240,000
in sediment: 720,000
temp. [C]: 25

p-Divinylbenzen
molecular weight: 1301.9
melting point [C]: 31
vapor pressure [Pa]: 4.9
water solubility [g/m3]: 8.2
log Kow: 4.18
half life [h] in air: 7
in water: 240,000
in soil: 240,000
in sediment: 720,000
temp. [C]: 25
Environmental properties:
See above

Results and discussion

Percent distribution in media

Air (%):
73.3
Water (%):
63.5
Soil (%):
25.2
Sediment (%):
32.8
Other distribution results:
The potential environmental distribution of Divinylbenzen (m-Divinylbenzen: 32%, p-Divinylbenzen: 68%) obtained from generic level III fugacity model under three emission scenarios is shown in table. The results show that if Divinylbenzene is released mainly into water, 63.5% stays in
water and 32.8% is transported to sediment. When Divinylbenzene is released mainly to air, 73.3% stays in air and 25.2% is transported to soil.

Compartment Amount %
Release 100% Release 100% Release 100%
to air to water to soil
Air 73.3 1.0 0.1
Water 1.0 63.5 0.0
Soil 25.2 1.1 99.9
Sediment 0.5 32.8 0.0

Any other information on results incl. tables

None

Applicant's summary and conclusion

Conclusions:
The results show that if Divinylbenzene is released mainly into water, 63.5% stays in water and 32.8% is transported to sediment. When Divinylbenzene is released mainly to air, 73.3% stays in air and 25.2% is transported to soil.

Executive summary:

Distributions were calculated according to Mackay, Level III. The results show that if Divinylbenzene is released mainly into water, 63.5% stays in water and 32.8% is transported to sediment. When Divinylbenzene is released mainly to air, 73.3% stays in air and 25.2% is transported to soil.