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Physical & Chemical properties

Partition coefficient

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Administrative data

Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
4th February - 3rd March 1998
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1998
Report date:
1998

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient - HPLC Method)
Deviations:
no
GLP compliance:
yes
Type of method:
HPLC method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Reference substance name:
Pentaerythritol mixed esters with 2-methyl butyric acid, n-pentanoic acid, n-heptanoic acid, 3,5,5-trimethylhexanoic acid, n-octanoic acid, n-decanoic acid
Cas Number:
141686-49-9
IUPAC Name:
Pentaerythritol mixed esters with 2-methyl butyric acid, n-pentanoic acid, n-heptanoic acid, 3,5,5-trimethylhexanoic acid, n-octanoic acid, n-decanoic acid
Constituent 2
Reference substance name:
Trimethylol propane mixed esters with 2-methyl butyric acid, n-pentanoic acid, n-heptanoic acid, 3,5,5-trimethylhexanoic acid, n-octanoic acid, n-decanoic acid
Cas Number:
141686-50-2
IUPAC Name:
Trimethylol propane mixed esters with 2-methyl butyric acid, n-pentanoic acid, n-heptanoic acid, 3,5,5-trimethylhexanoic acid, n-octanoic acid, n-decanoic acid
Test material form:
liquid
Details on test material:
Identification: Hatcol ® 1772
Appearance/physical state: Clear colorless liquid
Purity: 100% (no solvent present)
Composition: 70% pentaerythritol esters described by CAS# 141686-49-9; 30% trimethylolpropane esters described by CAS# 141686-50-2

Study design

Analytical method:
high-performance liquid chromatography

Results and discussion

Partition coefficient
Key result
Type:
log Pow
Partition coefficient:
> 6.2
Temp.:
40 °C
pH:
6.6

Applicant's summary and conclusion

Conclusions:
The partition coefficient of the test item has been determined to be greater than 1.59 x 10^6, log10 Pow >6.2.
Executive summary:

Greater than 1.59 x 106, log10 Pow >6.2, using the HPLC method, designed to be compatible with Method A.8 Partition Coefficient of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 117 of the OECD Guidelines for Testing of Chemicals, 13 April 2004.