Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 204-427-5 | CAS number: 120-80-9
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- Data comes from a peer-reviewed handbook cited among "reference books containing peer-reviewed physico-chemical data" in the ECHA guidance document on information requirements and chemical safety assessment (R.7a).
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- No data
- GLP compliance:
- not specified
- Type of method:
- other: no data available
- Water solubility:
- 804 g/L
- Temp.:
- 60 °C
- Remarks on result:
- other: No information on pH are available.
- Conclusions:
- Very soluble (> 10000 mg/L)
Catechol presents a water solubility value equal to 804 g/L at 60°C. - Executive summary:
A peer-reviewed handbook reports a water solubility value of 804 g/L at 60°C for catechol; indicating it is very soluble into water.
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- Data comes from a peer-reviewed handbook cited among "reference books containing peer-reviewed physico-chemical data" in the ECHA guidance document on information requirements and chemical safety assessment (R.7a). A publication, cited in the same endpoint study record, gives an identical value as the handbook.
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- No data
- GLP compliance:
- not specified
- Type of method:
- other: no data available
- Water solubility:
- 451 g/L
- Temp.:
- 20 °C
- Remarks on result:
- other: No information on pH are available.
- Conclusions:
- Very soluble (> 10000 mg/L)
Catechol present a water solubility value equal to 451 g/L at 20°C. - Executive summary:
A peer-reviewed handbook and a IUPAC publication report a similar water solubility value of 451 g/L at 20°C for catechol; indicating it is very soluble into water.
Referenceopen allclose all
Description of key information
Water solubility range: 235 to 584 g/L at 20 - 25°C.
Catechol is thus very soluble in water.
Key value for chemical safety assessment
- Water solubility:
- 517.5 g/L
- at the temperature of:
- 20 °C
Additional information
Reference peer-reviewed handbooks and publications give consistent values, reflecting a high water solubility of catechol. Two key studies (klimish 2) and two supporting studies (klimish 4) are available. An average of all the data at 20 °C was calculated to obtain the key value for chemical safety assessment.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
