Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
other: Weight of evidence
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Justification for type of information:
Potassium hydroxide is a strong alkaline substance that dissociates completely in water to K+ and OH- (OECD SIDS potassium hydroxide, 2002). Therefore, the only posssible effect would result from the pH effect. The study is therefore technically not feasible and not necessary.

Data source

Reference
Reference Type:
publication
Title:
SIDS Initial Assessment Report KOH
Author:
SIDS
Year:
2002
Bibliographic source:
SIDS
Report date:
2002

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
Potassium hydroxide is a strong alkaline substance that dissociates completely in water to K+ and OH- (OECD SIDS potassium hydroxide, 2002). Therefore, the only posssible effect would result from the pH effect. The study is therefore technically not feasible and not necessary.

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

Results and discussion

Effect concentrations
Remarks on result:
other: see remarks
Remarks:
Potassium hydroxide is a strong alkaline substance that dissociates completely in water to K+ and OH- (OECD SIDS potassium hydroxide, 2002). Therefore, the only posssible effect would result from the pH effect. The study is therefore technically not feasible and not necessary.

Applicant's summary and conclusion

Conclusions:
Potassium hydroxide is a strong alkaline substance that dissociates completely in water to K+ and OH- (OECD SIDS potassium hydroxide, 2002). Therefore, the only posssible effect would result from the pH effect. The study is therefore technically not feasible and not necessary.
Executive summary:

Potassium hydroxide is a strong alkaline substance that dissociates completely in water to K+ and OH- (OECD SIDS potassium hydroxide, 2002). Therefore, the only posssible effect would result from the pH effect. The study is therefore technically not feasible and not necessary.