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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Justification for type of information:
data is from authoritative and modelling databases
Qualifier:
equivalent or similar to guideline
Guideline:
other: estimated data
Principles of method if other than guideline:
To estimate the octanol water partition coefficient of hydrogen potassium phthalate
GLP compliance:
not specified
Type of method:
other: estimated data
Partition coefficient type:
octanol-water
Specific details on test material used for the study:
Name of test material (as cited in study report): Potassium hydrogen phthalate
- Molecular formula: C8H5O4.K
- Molecular weight: 204.23 g/mole
InChI: 1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q;+1/p-1
Smiles: c1(c(cccc1)C(=O)[O-])C(O)=O.[K+]
Substance Type: Organic
Physical State: Solid
Key result
Type:
log Pow
Partition coefficient:
-2.73
Remarks on result:
other: no other details mentioned
Conclusions:
The estimated LogPow of Potassium Biphthalate was -2.73
Executive summary:

Data from various authoritative and modeling, authoritative databases suggests that the estimated LogPow of Potassium Biphthalate was -2.73.

This value indicates that Potassium Biphthalate is hydrophillic in nature, which is also supported by its high solubility in water.

Description of key information

Data from various authoritative and modeling, authoritative databases suggests that the estimated LogPow of Potassium Biphthalate was -2.73.

This value indicates that Potassium Biphthalate is hydrophillic in nature, which is also supported by its high solubility in water.

Key value for chemical safety assessment

Log Kow (Log Pow):
-2.73

Additional information

Data from various authoritative and modeling, authoritative databases suggests that the estimated LogPow of Potassium Biphthalate was -2.73.

This value indicates that Potassium Biphthalate is hydrophillic in nature, which is also supported by its high solubility in water.