Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Remarks:
Estimated via US EPA EPIWIN software (v3.20) Level III Fugacity Model
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Remarks:
Model cited in R.7 guidance

Data source

Reference
Reference Type:
other: Modeled
Title:
US EPA EPIWIN v3.20
Author:
US EPA
Year:
2009
Bibliographic source:
US EPA EPIWIN Suite v3.20

Materials and methods

Model:
calculation according to Mackay, Level III
Calculation programme:
US EPA EPIWIN v3.20
Release year:
2 007
Media:
other: Air - Water - Soil - Sediment

Test material

Constituent 1
Chemical structure
Reference substance name:
Acetonitrile
EC Number:
200-835-2
EC Name:
Acetonitrile
Cas Number:
75-05-8
Molecular formula:
C2H3N
IUPAC Name:
acetonitrile
Test material form:
liquid

Results and discussion

Percent distribution in media

Air (%):
13
Water (%):
44.1
Soil (%):
42.8
Sediment (%):
0.08

Any other information on results incl. tables

Estimated Half-life (hrs):

Air - 1544

Water - 360

Soil - 720

Sediment - 3240

Applicant's summary and conclusion

Executive summary:

US EPA EPIWIN software (v3.20) Level III Fugacity Model predicted the following percent distribution and half-lives for acetonitrile in environmental media:

Air - 13%, 1544 hours

Water - 44.1%, 360 hours

Soil - 42.8%, 720 hours

Sediment - 0.0811%, 3240 hours