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Physical & Chemical properties

Partition coefficient

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
July 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient - Shake Flask Method)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
flask method
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
Identification: Hydroxypropyl, N-2-, N,N,N-trimethylammonium 2-ethylhexanoate
Other name: solvent-free Dabco TMR
Physical state/appearance: yellow viscous liquid
Batch number: meyers1.20160601
CAS Number: 62314-22-1
EU Number: 263-502-0
Purity: 96.5% active in water
Expiry date: 01 June 2017
Storage conditions: Room temperature in the dark
Analytical method:
high-performance liquid chromatography
Key result
Type:
log Pow
Partition coefficient:
1.2
Temp.:
22 °C
pH:
5
Conclusions:
The partition coefficient of the test item has been determined at a nominal pH value of 5 (actual value 4.9) and a test temperature of 22.0 ± 0.5 °C.

Quaternary Amine Cation: Partition coefficient (Pow) <1.01 x 10-2
Log Pow <-2.00

2-Ethylhexanoic Acid Content: Partition coefficient (Pow) 15.9
Log Pow 1.20
Executive summary:

The partition coefficient (n-octanol/water) of Hydroxypropyl, N-2-, N,N,Ntrimethylammonium 2-ethylhexanoate has been determined at a nominal pH value of 5(actual value 4.9) and a test temperature of 22.0 ± 0.5 °C. Testing used a shake-flask method designed to be compatible with Method A.8 Partition Coefficient of Commission Regulation(EC) No 440/2008 of 30 May 2008 and Method 107 of the OECD Guidelines for Testing ofChemicals, 27 July 1995.

The partition coefficient of the test item has been determined at a nominal pH value of 5 (actual value 4.9) and a test temperature of 22.0 ± 0.5 °C.

Quaternary Amine Cation: Partition coefficient (Pow) <1.01 x 10-2

Log Pow <-2.00

2-Ethylhexanoic Acid Content: Partition coefficient (Pow) 15.9

Log Pow 1.20


Description of key information

The partition coefficient of the test item has been determined at a nominal pH value of 5 (actual value 4.9) and a test temperature of 22.0 ± 0.5 °C.

Quaternary Amine Cation: Partition coefficient (Pow) <1.01 x 10 -2

Log Pow <-2.00

2-Ethylhexanoic Acid Content: Partition coefficient (Pow) 15.9

Log Pow 1.20

Key value for chemical safety assessment

Log Kow (Log Pow):
1.2
at the temperature of:
22 °C

Additional information