Registration Dossier

Administrative data

Endpoint:
distribution modelling
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2013

Materials and methods

Model:
calculation according to Mackay, Level III

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
other: liquid

Study design

Test substance input data:
Chem Name : 2-Propenoic acid, 2-methyl-, dodecyl ester
Molecular Wt: 254.42
Henry's LC : 0.0125 atm-m3/mole (Henrywin program)
Vapor Press : 0.00045 mm Hg (user-entered)
Log Kow : 6.57 (Kowwin program)
Soil Koc : 6.73e+003 (KOCWIN MCI method)

------------------------------ EPI SUMMARY (v4.10) --------------------------
Physical Property Inputs:
Log Kow (octanol-water): ------
Boiling Point (deg C) : 307.00
Melting Point (deg C) : -7.00
Vapor Pressure (mm Hg) : 0.00045
Water Solubility (mg/L): ------
Henry LC (atm-m3/mole) : ------

Results and discussion

Percent distribution in media

Other distribution results:
Using a valid modeling approach, if Dodecyl methacrylate is released mainly into air, it mainly remains in the air. And if it is released into water, it also mainly remains in the water.

Any other information on results incl. tables

Distribution modelling

Level III Fugacity Model (Full-Output):

=======================================

Chem Name : 2-Propenoic acid, 2-methyl-, dodecyl ester

Molecular Wt: 254.42

Henry's LC : 0.0125 atm-m3/mole (Henrywin program)

Vapor Press : 0.00045 mm Hg (user-entered)

Log Kow : 6.57 (Kowwin program)

Soil Koc : 6.73e+003 (KOCWIN MCI method)

 

Release to air: 

 Mass Amount (percent)  Half-Life(hr)  Emissions(kg/hr)
 Air  94.3  7.71  1000
 Water  0.295  360  0
 Soil  5.31  720  0
 Sediment  0.0508  3.24e+003  0

                               

                                        

 Fugacity(atm)  Reaction(kg/hr)  Advection(kg/hr)  Reaction(percent)  Advection(percent)
 Air 9.59e-012  899  100  89.9  10
 Water  6.42e-012  0.0602  0 .0313  0.00602  0.00313
 Soil  9.49e-012  0.542  0  0.0542  0
 Sediment  4.07e-012  0.00115  0.000108  0.000115  1.08e-05
  

 

  Persistence Time: 10.6 hr

  Reaction Time:    11.8 hr

  Advection Time:  106 hr

  Percent Reacted: 90

  Percent Advected: 10

 

  Half-Lives (hr), (based upon Biowin (Ultimate) and Aopwin):

     Air:     7.712

     Water:   360

     Soil:    720

     Sediment: 3240

       Biowin estimate: 3.075 (weeks )

 

  Advection Times (hr):

     Air:     100

     Water:   1000

     Sediment: 5e+004

 

Release to water: 

 Mass Amount (percent)  Half-Life(hr)  Emissions(kg/hr)
 Air  1.72  7.71 0
 Water  83.7  360  1000
 Soil  0.0967  720  0
 Sediment  14.4  3.24e+003  0

                               

                                        

 Fugacity(atm)  Reaction(kg/hr)  Advection(kg/hr)  Reaction(percent)  Advection(percent)
 Air 3.92e-012  368  40.9  36.8  4.09
 Water  4.1e-08  384  199  38.4  19.9
 Soil  3.88e-012  0.222  0  0.0222  0
 Sediment  2.6e-08  7.35  0.687  0.735  0.0687

          

 

  Persistence Time: 238 hr

  Reaction Time:    314 hr

  Advection Time:   988 hr

  Percent Reacted:  75.9

  Percent Advected: 24.1

 

  Half-Lives (hr), (based upon Biowin (Ultimate) and Aopwin):

     Air:     7.712

     Water:   360

     Soil:    720

     Sediment: 3240

     Biowin estimate: 3.075 (weeks)

 

  Advection Times (hr):

     Air:     100

     Water:   1000

     Sediment: 5e+004

Applicant's summary and conclusion

Conclusions:
Using a valid modeling approach, if Dodecyl methacrylate is released mainly into air, it mainly remains in the air. And if it is released into water, it also mainly remains in the water.
Executive summary:

Using a valid modeling approach, if Dodecyl methacrylate is released mainly into air, it remains in the air. And if it is released into water, it also mainly remains in the water.

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