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Physical & Chemical properties

Partition coefficient

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Administrative data

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Endpoint:
partition coefficient
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Justification for type of information:
ANALOGUE APPROACH JUSTIFICATION
Read-across from sodium cyanate was performed. In aqueous solution cyanate salts dissociate very quickly to cyanate ion and the respective alkali metal ion. It is not expected that Na+ or K+ contribute to the partition coefficient.
Reason / purpose for cross-reference:
read-across source
Key result
Type:
log Pow
Partition coefficient:
< 0.3
Temp.:
20 °C
pH:
6
Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2008-12-10 to 2008-12-11
Reliability:
1 (reliable without restriction)
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient)
Version / remarks:
EC-No. 440/2008
Deviations:
no
GLP compliance:
yes
Type of method:
HPLC method
Partition coefficient type:
octanol-water
Analytical method:
high-performance liquid chromatography
Key result
Type:
log Pow
Partition coefficient:
< 0.3
Temp.:
20 °C
pH:
6
Conclusions:
A log Pow of 0.127 was measured. This value lies outside the range of the recommended reference items. The log Pow of the test item Sodium cyanate is stated as < 0.3.
Executive summary:

A log POW of 0.127 was measured (HPLC-Method). This value lies outside the range of the recommended reference items. Therefore, the log POW of the test item Sodium cyanate is stated as < 0.3.

Description of key information

No study is available for potassium cyanate. Read across from sodium cyanate was performed instead. In aqueous solution cyanate salts dissociate very quickly to cyanate ion and the respective alkali metal ion. It is not expected that Na+ or K+ contribute to the partition coefficient.
A log Pow of 0.127 was measured (HPLC-Method). This value lies outside the range of the recommended reference items. Therefore, the log Pow of the test item sodium cyanate is stated as < 0.3.

Key value for chemical safety assessment

Log Kow (Log Pow):
0.3
at the temperature of:
20 °C

Additional information