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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Distribution modelling

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Administrative data

distribution modelling
Type of information:
calculation (if not (Q)SAR)
Migrated phrase: estimated by calculation
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Scientifically acceptable method of calculation.

Data source

Reference Type:
other: EPIWIN
No information
Bibliographic source:
EPI Suite v4.0, US Environmental Protection Agency, 2000-2009

Materials and methods

calculation according to Mackay, Level III
Calculation programme:
Fugacity was determined using EQC Level III model as found in EPIWIN v4.0. Emission to only water was assumed. All parameters used in the calculation were the default values found in EPIWIN.
Release year:
2 008
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Reference substance name:
Cyclohexane, oxidized, aq. ext.
EC Number:
EC Name:
Cyclohexane, oxidized, aq. ext.
Cas Number:
Molecular formula:
not available
Cyclohexane, oxidized, aq. ext.
Details on test material:
Components of the substance were calculated with EPI-Suite.

Results and discussion

Any other information on results incl. tables

Theoretical distribution (fugacity) of EP-306 components in the environment

EP-306 Component  Air  Water  Soil  Sediment 
Formic acid  0.006  99.8  0.035  0.176 
Acetic acid  0.003  99.8  0.025  0.176 
Propionic acid  0.023  99.7  0.049  0.178 
Butyric acid  0.025  99.7  0.046  0.183 
Valeric acid  0.018  99.8  0.038  0.191 
Caproic acid  0.027  99.7  0.038  0.205 
Succinic acid  <0.001  99.8  <0.001  0.200 
Glutaric acid  <0.001  99.8  <0.001  0.222 
Adipic acid  <0.001  99.7  <0.001  0.262 
6 -Hydroxycaproic acid  <0.001  99.8  <0.001  0.177 
Cyclohexanol  0.076  99.7  0.028  0.230 
Cyclohexanone  0.315  99.4  0.063  0.254 
Cyclohexyl hydroperoxide  0.244  98.0  0.052  1.75 

*calculated assuming 100% release into water

Applicant's summary and conclusion