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Physical & Chemical properties

Partition coefficient

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partition coefficient
Data waiving:
study technically not feasible
Justification for data waiving:
Justification for type of information:
The substance is unstable in water and testing would record the results of the key degradation products.
The hydrolysis products are 1-butanol and zirconium dioxide. These organic products will have a low partition coefficient.
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
equivalent or similar to guideline
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
GLP compliance:
not specified
Type of method:
flask method
Partition coefficient type:
Key result
log Pow
Partition coefficient:
ca. 0.88
20 °C
ca. 7
The log Pow of 1-butanol is 0.88 at 20°C according to literature.

Description of key information

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
20 °C

Additional information

As the target substance hydrolyzes rapidly within 30 minutes, the intrinsic properties of the target substance lie on the hydrolysis product. The log Pow of 1 -butanol 0.88 at 20°C was chosen for CSA.