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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: 2f: Accepted calculation method
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
other: modeling
Title:
Level III Fugacity model predictions from EPIWIN v 3.10; PC-Computer software developed by EPA's Office of Pollution Prevention Toxics and Syracuse Research Corporation (SRC)
Author:
U.S. EPA (U.S. Environmental Protection Agency)
Year:
2007

Materials and methods

Model:
calculation according to Mackay, Level III
Release year:
2 007
Media:
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Chemical structure
Reference substance name:
Dimethyl sulfoxide
EC Number:
200-664-3
EC Name:
Dimethyl sulfoxide
Cas Number:
67-68-5
Molecular formula:
C2H6OS
IUPAC Name:
dimethyl sulfoxide

Study design

Test substance input data:
Henry's LC: 8.6e-7 atm-m3/mole
Vapour Press: 0.42 mm Hg 
Log Kow: -1.35  (Kowwin program) Soil Koc: 0.15  (Gerstl' equation)

Half-Lives (hr), (based upon Biowin (Ultimate) and Aopwin)
Air:      4.14
Water:    360
Soil:     720
Sediment: 3240
Biowin estimate: 3.027  (weeks)

Results and discussion

Percent distribution in media

Air (%):
0.59
Water (%):
48.1
Soil (%):
51.3
Sediment (%):
0.09
Other distribution results:
Half-Lives (hr), (based upon Biowin (Ultimate) and Aopwin):
Air:      4.14
Water:    360
Soil:     360
Sediment: 1440

Biowin estimate: 3.027  (weeks)

Any other information on results incl. tables

Henry's LC: 1.51e-9 atm-m3/mole (Henry database)
Vapour Press: 0.622 mm Hg  (Mpbpwin program)
Log Kow: -1.35  (Kowwin program)
Soil Koc: 0.0183  (calc by model)

*         Mass Amount    Half-Life    Emissions
          (percent)        (hr)       (kg/hr)
Air       0.0458          4.14         1000      
Water     45.9            360          1000      
Soil      53.9            360          1000      
Sediment  0.0766          1.44e+003    0         


*         Fugacity    Reaction    Advection   Reaction
           (atm)      (kg/hr)      (kg/hr)    (percent)
            
Air       1.74e-012    93.3        5.57        3.11
Water     5.41e-014    1.08e+003   559         35.9
Soil      2.35e-012    1.26e+003   0           42.1
Sediment  4.5e-014     0.449       0.0186      0.015

          Advection
          (percent)
Air       0.186
Water     18.6
Soil      0
Sediment  0.000622

*Persistence Time: 406 hr
Reaction Time:    500 hr
Advection Time:   2.15e+003 hr
Percent Reacted:  81.2
Percent Advected: 18.8

*Advection Times (hr):
Air:      100
Water:    1000
Sediment: 5e+00

Applicant's summary and conclusion