Registration Dossier

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:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: standard routines

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2009
Report Date:
2009

Materials and methods

Model:
calculation according to Mackay, Level III
Calculation programme:
LEVEL3B.BAS, Centre for Environmental Modelling and Chemistry, Trent University, Canada, adapted to MATLAB
Media:
other: air - soil - water - sediment

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent

Results and discussion

Percent distribution in media

Air (%):
0.06
Water (%):
99.93
Soil (%):
0
Sediment (%):
0

Applicant's summary and conclusion

Conclusions:
Lactic acid will partition predominantly to the aqueous compartment.
Executive summary:

A level III Fugacity calculation was performed for lactic acid with a version of 'LEVEL3B.BAS', as downloaded from the website of Trent University, Canada, adapted for MATLAB. A fugacity calculation clearly shows that lactic acid will remain in the aqueous compartment and be degraded there. Under the default compartment sizes used in the LEVEL3.BAS model, > 99.8 % of the amount of lactic acid present in the system is found in water.