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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
pH
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: According to the OECD SIDS document for potassium hydroxide (30 January 2002), a Klimisch 2 reliability score was assigned since data are from handbook or collection of data.

Data source

Reference
Reference Type:
review article or handbook
Title:
The Merck Index
Author:
Budavari S
Year:
1996
Bibliographic source:
12th ed., Whitehouse Station, NJ : Merck

Materials and methods

GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Potassium hydroxide
EC Number:
215-181-3
EC Name:
Potassium hydroxide
Cas Number:
1310-58-3
Molecular formula:
HKO
IUPAC Name:
potassium hydroxide
Details on test material:
- Name of test material (as cited in study report): potassium hydroxide

Results and discussion

pH value
pH value:
ca. 13.5
Temp.:
25 °C
Concentration:
5.611 g/L
Remarks on result:
other: From a theoretical point of view, the pH of a 0.1M solution should be 13. pKa is not applicable (strong base, totally dissociated)

Applicant's summary and conclusion

Conclusions:
pH ca 13.5 at 5.611 g/l and 25°C