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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
dissociation constant
Type of information:
experimental study
Adequacy of study:
key study
Study period:
25.10.2012 to 06.11.2012
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2012

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other:
Principles of method if other than guideline:
Measurement of capacity of a compound to dissociate into respective ions.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
4-fluorophenol
EC Number:
206-736-0
EC Name:
4-fluorophenol
Cas Number:
371-41-5
Molecular formula:
C6H5FO
IUPAC Name:
4-fluorophenol
Details on test material:
- Name of test material : 4-fluorophenol
-Molecular Formula: C6H5FO
-Molecular weight: 112.1
-Physical state:solid
- Substance type: Organic

Results and discussion

Dissociating properties:
yes
Dissociation constantopen allclose all
No.:
#1
pKa:
0
Temp.:
27 °C
Remarks on result:
other: 0.00000536 (0.536 x10-5)
No.:
#2
pKa:
0
Temp.:
27 °C
Remarks on result:
other: 0.00000535(0.535 x 10-5)
No.:
#3
pKa:
0
Temp.:
27 °C
Remarks on result:
other: 0.00000532 (0.532 x 10-5)

Applicant's summary and conclusion

Conclusions:
The experimental pKa value for 4-fluorophenol was found to be 0.00000536,0.00000535,0.00000532 at 27 degC indicating that it has dissociation properties.The average pKa value at 27 Deg C is equivalent to 0.00000534333.
Executive summary:

The experimental pKa value for 4-fluorophenol was found to be 0.00000536,0.00000535,0.00000532 at 27 degC indicating that it has dissociation properties.The average pKa value at 27 Deg C is equivalent to 0.00000534333.