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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:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
not reported
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Justification for type of information:
Estimation according to Meylan and Howard (1995): Atom/fragment contribution method for estimating octanol–water partition coefficients.
CAS Number : 010028-15-6
Chem Name : OZONE
Mol Formula: O3
Mol Weight : 47.998
Melting Pt : -193 deg C
Boiling Pt : -111.9 deg C

Log P (octanol-water):
Value : -0.87
Type : EST
Ref : MEYLAN,WM & HOWARD,PH (1995)
Principles of method if other than guideline:
Estimation according to Meylan and Howard (1995).
Title: Atom/fragment contribution method for estimating octanol–water partition coefficients.
Source: Journal of Pharmaceutical Sciences 84(1): 83-92
GLP compliance:
no
Type of method:
calculation method (fragments)
Partition coefficient type:
octanol-water
Type:
log Pow
Partition coefficient:
-0.87
Remarks on result:
other: Estimated data.
Details on results:
Estimated value for ozone as given in the SRC PhysProp Database, based on a method described by Meylan & Howard 1995.
Conclusions:
According to the SRC PhysProp database the estimated log Pow for ozone is –0.87.
Executive summary:

According to the SRC PhysProp database the estimated log Pow for ozone is –0.87.

Description of key information

According to the SRC PhysProp Database the estimated log Pow for ozone is –0.87.

Key value for chemical safety assessment

Log Kow (Log Pow):
-0.87
at the temperature of:
20 °C

Additional information

Additionally, ozone is an unstable, highly reactive (oxidising) inorganic gas and has therefore no bioaccumulation potential.