Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Adsorption / desorption

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
adsorption / desorption: screening
Type of information:
(Q)SAR
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
Justification for type of information:
QSAR prediction:(Q)SAR method with established scientific validity
Qualifier:
no guideline followed
Principles of method if other than guideline:
QSAR model
GLP compliance:
no
Remarks:
not relevant
Type of method:
other: QSAR model
Media:
other: QSAR model
Radiolabelling:
no
Test temperature:
QSAR model
Analytical monitoring:
no
Type:
Koc
Value:
4 658
Remarks on result:
other: Estimate from MCI:
Type:
log Koc
Value:
3.668
Remarks on result:
other: Koc Estimate from MCI
Type:
Koc
Value:
17 230
Remarks on result:
other: Estimate from Log Kow
Type:
log Koc
Value:
4.236
Remarks on result:
other: Estimate from Log Kow:

KOCWIN Program (v2.00) Results:

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

SMILES : CCCCCCCCCCCCCCCCO

CHEM  : Alcohols, C16-18

MOL FOR: C16 H34 O1

MOL WT : 242.45

--------------------------- KOCWIN v2.00 Results ---------------------------

 

 Koc Estimate from MCI:

 ---------------------

        First Order Molecular Connectivity Index ........... : 8.414

        Non-Corrected Log Koc (0.5213 MCI + 0.60) .......... : 4.9861

        Fragment Correction(s):

                 1  Aliphatic Alcohol (-C-OH) ........... : -1.3179

        Corrected Log Koc .................................. : 3.6682

 

                        Estimated Koc: 4658 L/kg  <===========

 

 Koc Estimate from Log Kow:

 -------------------------

        Log Kow (Kowwin estimate) ......................... : 6.73

        Non-Corrected Log Koc (0.55313 logKow + 0.9251) .... : 4.6477

        Fragment Correction(s):

                 1  Aliphatic Alcohol (-C-OH) ........... : -0.4114

        Corrected Log Koc .................................. : 4.2362

 

                        Estimated Koc: 1.723e+004 L/kg  <===========

Validity criteria fulfilled:
yes
Conclusions:
KOCWIN predicts a Koc value of 4658 L/kg (log Koc 3.6682)
The log of the adsorption coefficient (KOC) of Alcohols, C16-18 was estimated to be log KOC = 3.6682 which is equal to a KOC value of 4658 using the KOCWIN v2.00 QSAR method. Estimate from MCI.
The log of the adsorption coefficient (KOC) of Alcohols, C16-18 was estimated to be log KOC = 4.2362 which is equal to a KOC value of 17230 using the KOCWIN v2.00 QSAR method. Estimate from Log Kow.
Executive summary:

The log of the adsorption coefficient (KOC) of Alcohols, C16-18 was estimated to be log KOC = 3.6682 which is equal to a KOC value of 4658 using the KOCWIN v2.00 QSAR method. Estimate from MCI.

The log of the adsorption coefficient (KOC) of Alcohols, C16-18 was estimated to be log KOC = 4.2362which is equal to a KOC value of 17230 using the KOCWIN v2.00 QSAR method. Estimate from Log Kow.

Description of key information

The log of the adsorption coefficient (KOC) of Alcohols, C16-18 was estimated to be log KOC = 3.6682 which is equal to a KOC value of 4658 using the KOCWIN v2.00 QSAR method. Estimate from MCI.
The log of the adsorption coefficient (KOC) of Alcohols, C16-18 was estimated to be log KOC = 4.2362 which is equal to a KOC value of 17230 using the KOCWIN v2.00 QSAR method. Estimate from Log Kow.

Key value for chemical safety assessment

Koc at 20 °C:
4 658

Additional information

The log of the adsorption coefficient (KOC) of Alcohols, C16-18 was estimated to be log KOC = 3.6682 which is equal to a KOC value of 4658 using the KOCWIN v2.00 QSAR method.

KOCWIN Program (v2.00) Results:

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

SMILES : CCCCCCCCCCCCCCCCO

CHEM  : Alcohols, C16-18

MOL FOR: C16 H34 O1

MOL WT : 242.45

--------------------------- KOCWIN v2.00 Results ---------------------------

 

 Koc Estimate from MCI:

 ---------------------

        First Order Molecular Connectivity Index ........... : 8.414

        Non-Corrected Log Koc (0.5213 MCI + 0.60) .......... : 4.9861

        Fragment Correction(s):

                 1  Aliphatic Alcohol (-C-OH) ........... : -1.3179

        Corrected Log Koc .................................. : 3.6682

 

                        Estimated Koc: 4658 L/kg  <===========

 

 Koc Estimate from Log Kow:

 -------------------------

        Log Kow (Kowwin estimate) ......................... : 6.73

        Non-Corrected Log Koc (0.55313 logKow + 0.9251) .... : 4.6477

        Fragment Correction(s):

                 1  Aliphatic Alcohol (-C-OH) ........... : -0.4114

        Corrected Log Koc .................................. : 4.2362

 

                        Estimated Koc: 1.723e+004 L/kg  <===========

[LogKoc: 3.6682]