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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
HPLC method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
Isobutylbenzene
EC Number:
208-706-2
EC Name:
Isobutylbenzene
Cas Number:
538-93-2
Molecular formula:
C10H14
IUPAC Name:
(2-methylpropyl)benzene
Test material form:
liquid
Specific details on test material used for the study:
Purity of the test material: >95 %
Batch number: EXP-18/11/346

Study design

Analytical method:
high-performance liquid chromatography

Results and discussion

Partition coefficient
Key result
Type:
log Pow
Partition coefficient:
4.8
Temp.:
23 °C
pH:
6
Remarks on result:
other: pH value of the water used for the preperation of the eluent.

Any other information on results incl. tables

Individual results:

 Component

 t (min) mean value

out of two determinations

 k  log k  log Pow
 Formamide  1.5      
 Ethylenzoate  4.0  1.72  0.234  2.6
 Toluene  4.8  2.23  0.349  2.7
Ethylbenzene   6.2  3.15  0.498  3.2
 Cumene  7.2  4.23  0.626  3.7
 n-Butylbezene 12.2 7.20  0.857  4.6
 Bibenzyl 10.3   5.92  0.773  4.8
 DDT  23.9  15.12  1.180  6.5
Test Item   11.7  6.85  0.836  4.8

Applicant's summary and conclusion