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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
adsorption / desorption, other
Remarks:
Calculation
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
02.06.2016
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Principles of method if other than guideline:
KOCWIN (v2.00) from EpiSuite v4.10 (Copyright 200-2008 US EPA)
GLP compliance:
no
Type of method:
other: (Q)SAR calculation
Remarks:
EpiSuite 4.10 (copyright 2000-2008 US EPA), KOCWIN Program (v2.00)

Test material

Constituent 1
Chemical structure
Reference substance name:
2-chloro-2-methylbutane
EC Number:
209-836-2
EC Name:
2-chloro-2-methylbutane
Cas Number:
594-36-5
Molecular formula:
C5H11Cl
IUPAC Name:
2-chloro-2-methylbutane

Results and discussion

Adsorption coefficientopen allclose all
Key result
Type:
Koc
Value:
153.7 L/kg
Remarks on result:
other:
Remarks:
(Q)SAR calculation, KOC estimate from logKow
Key result
Type:
log Koc
Value:
2.187
Remarks on result:
other: (Q)SAR calcuation, KOC estimate from logKow
Type:
log Koc
Value:
1.935
Remarks on result:
other:
Remarks:
(Q)SAR calculation, KOC estimated from MCI
Type:
Koc
Value:
86.03 L/kg
Remarks on result:
other:
Remarks:
(Q)SAR calculation, KOC estimated from MCI

Any other information on results incl. tables

Koc Estimate from MCI:

---------------------

First Order Molecular Connectivity Index ........... : 2.561

Non-Corrected Log Koc (0.5213 MCI + 0.60) .......... : 1.9347

Fragment Correction(s) --> NONE : ---

Corrected Log Koc .................................. : 1.9347

Estimated Koc: 86.03 L/kg <===========

Koc Estimate from Log Kow:

-------------------------

Log Kow (experimental DB) ......................... : 2.52

Non-Corrected Log Koc (0.8679 logKow - 0.0004) ..... : 2.1867

Fragment Correction(s) --> NONE : ---

Corrected Log Koc .................................. : 2.1867

Estimated Koc: 153.7 L/kg <===========

Applicant's summary and conclusion

Validity criteria fulfilled:
not applicable
Conclusions:
Depending on the model, the log KOC is 1.9347 based on KOC estimation from MCI or 2.1867 based on KOC estimation from logKow.