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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:
09 July 1984 to 10 July 1984
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:
not specified
Qualifier:
according to guideline
Guideline:
other: EEC TG A 3.8
GLP compliance:
yes
Type of method:
flask method
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
Product: Monoazo Yellow HT 2025
Identification: FAT 20306/B
Storage: room temperature 20-24 °C
Analytical method:
other: spectrophotometry
Type:
Pow
Partition coefficient:
0.17
Temp.:
25 °C
pH:
6.3
Type:
log Pow
Partition coefficient:
-0.77
Temp.:
25 °C
pH:
6.3
Details on results:
Overall mean value of n = 6
Conclusions:
log Pow of FAT 20306/B was -0.77.
Executive summary:

A guideline test was carried out with FAT 20306/B according to OECD guideline 107 using flask method. Based on the test results the octanol-water partition coefficient of the test material was determined to be -0.77 at 25 °C, indicating the substance is more water soluble than in n-octanol.

Description of key information

A guideline test was carried out with FAT 20306/B according to OECD guideline 107 using flask method. Based on the test results the octanol-water partition coefficient of the test material was determined to be -0.77 at 25 °C, indicating the substance is more water soluble than in n-octanol.

Key value for chemical safety assessment

Log Kow (Log Pow):
-0.77
at the temperature of:
25 °C

Additional information