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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:
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:
equivalent or similar to guideline
Guideline:
EU Method A.8 (Partition Coefficient - Shake Flask Method)
Deviations:
no
GLP compliance:
no
Type of method:
flask method
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
Name: Poly(oxy-1,2-ethanediyl), .alpha.,.alpha.'-(iminodi-2,1-ethanediyl)bis[.omega.-hydroxy-, N-[3-(C10-16-alkyloxy)propyl] derivs., di-Et sulfate-quaternized
Product Description: C10-16-alkyletherpropylamine, ethoxylated, DES Quat
CAS No.: 70983-58-3
Physical state: yellowish to amber viscous liquid at 20 °C
Batch No.: PFS-755-173
Re-certification date of batch: 19 April 2018
Purity: 100 % (UVCB)
Color, Gardner 8.8
pH, 5% in water 5.76
Acid Value , mg KOH/g 20.1
Moisture, % 0.127
Total Amine, mg/g 11.18
Viscosity,cps, #4@60,25C 3280
Appearance @25C pass
Stability: stable under test conditions
Storage condition of test material: Room temperature, protected from light
Analytical method:
high-performance liquid chromatography
Key result
Type:
Pow
Partition coefficient:
279.4
Temp.:
24.4 °C
pH:
>= 6.46 - <= 6.79
Key result
Type:
log Pow
Partition coefficient:
2.446
Temp.:
24.4 °C
pH:
>= 6.46 - <= 6.79

Results

Table 5: Concentrations of test solutions

 Test mixture  Concentration of test item [mg/g], n-octanol phase   Concentration of test item [mg/g], aqueous phase
 1  3.262  0.011
 2  3.255  0.011
 3  3.243  0.012
 4  3.289  0.012
 5  3.295  0.012
 6  3.262  0.012

Table 6: Calculated Pow and logPow values

 Test mixture  Pow  log Pow
 1  295.20  2.470
 2  291.92  2.465
 3  280.79  2.448
 4  279.92  2.447
 5  264.69  2.423
 6  264.13  2.422
 Average Pow 279.4 +- 13.1   -
 Average log Pow  -  2.446

Total average over 6 independent determinations:

POW = 279.4 ± 13.1 (standard deviation)

log POW = 2.446

The pH value of the aqueous phases varied from 6.46 to 6.79. The Partition Coefficient was determined at 24.4 °C.

Conclusions:
The partition coefficient of the test item was determined according to the OECD Guideline 107 (Shake Flask Method).
Results:  POW = 279.4 ± 13.1 (standard deviation); log POW = 2.446. The pH value of the aqueous phases varied from 6.46 to 6.79. The Partition Coefficient was determined at 24.4 °C.
Executive summary:

The partition coefficient of the test item was determined according to the OECD Guideline 107 (Shake Flask Method).

Results:  POW = 279.4 ± 13.1 (standard deviation); log POW = 2.446. The pH value of the aqueous phases varied from 6.46 to 6.79. The Partition Coefficient was determined at 24.4 °C.

Description of key information

The partition coefficient of the test item was determined according to the OECD Guideline 107 (Shake Flask Method). Results:  POW = 279.4 ± 13.1 (standard deviation); log POW = 2.446. The pH value of the aqueous phases varied from 6.46 to 6.79. The Partition Coefficient was determined at 24.4 °C.

Key value for chemical safety assessment

Log Kow (Log Pow):
2.446
at the temperature of:
24.4 °C

Additional information