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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Adsorption / desorption

Currently viewing:

Administrative data

Endpoint:
adsorption / desorption: screening
Remarks:
other: Calculated using PCKOCWIN v.1.66
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Study period:
2007
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well-documented publication/study report which meets basic scientific principles
Cross-referenceopen allclose all
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to other study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007

Materials and methods

Principles of method if other than guideline:
Calculation with PCKOCWIN v1.66
GLP compliance:
no
Type of method:
other: Calculation
Media:
other: Calculation

Test material

Constituent 1
Reference substance name:
n-Butanal
IUPAC Name:
n-Butanal
Constituent 2
Reference substance name:
000123-72-8
Cas Number:
000123-72-8
IUPAC Name:
000123-72-8
Details on test material:
Not relevant
Specific details on test material used for the study:
Details on properties of test surrogate or analogue material (migrated information):
Not relevant
Radiolabelling:
no

Study design

Test temperature:
Not relevant

HPLC method

Details on study design: HPLC method:
Not relevant

Batch equilibrium or other method

Analytical monitoring:
not required
Details on sampling:
Not relevant
Details on matrix:
Not relevant
Details on test conditions:
Not relevant
Computational methods:
Calculation with PCKOCWIN v1.66

Results and discussion

Adsorption coefficient
Type:
Koc
Value:
5.1

Results: HPLC method

Details on results (HPLC method):
Not relevant

Results: Batch equilibrium or other method

Adsorption and desorption constants:
Not relevant
Recovery of test material:
Not relevant
Concentration of test substance at end of adsorption equilibration period:
Not relevant
Concentration of test substance at end of desorption equilibration period:
Not relevant
Details on results (Batch equilibrium method):
Not relevant
Statistics:
Not relevant

Any other information on results incl. tables

Koc (estimated): 5.1

First Order Molecular Connectivity Index  ........... :  2.414
Non-Corrected Log Koc
  .............................. :  1.9072
Fragment Correction(s)
:

1   Misc (C=O) Group (aliphatic attach)....  : -1.2000

Corrected Log Koc  .................................. :  0.7072

Estimated Koc:  5.096    

Applicant's summary and conclusion

Validity criteria fulfilled:
not applicable
Conclusions:
Estimated Koc:  5.096    
Executive summary:

Estimated Koc: 5.096