Registration Dossier
Registration Dossier
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EC number: 235-227-6 | CAS number: 12136-45-7
Additional information on environmental fate and behaviour
Administrative data
- Endpoint:
- additional information on environmental fate and behaviour
- Type of information:
- other: Published data
- Adequacy of study:
- weight of evidence
- 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:
- According to the OECD SIDS document for potassium hydroxide (30 January 2002), a Klimisch 2 reliability score was assigned since the study is well documented, meets generally accepted scientific principles and is acceptable for assessment.
Data source
Reference
- Reference Type:
- review article or handbook
- Title:
- Industrial Inorganic Chemicals and Products
- Author:
- Ullmann
- Year:
- 1 998
- Bibliographic source:
- Ullmann's Encyclopedia, Vol. 5, p 3831
Materials and methods
- Principles of method if other than guideline:
- The study is well documented, meets generally accepted scientific principles and is acceptable for assessment.
- GLP compliance:
- not specified
Test material
- 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
Constituent 1
Results and discussion
Any other information on results incl. tables
With a global potash production of 29.341.000 tons K2O, or 24.357.391 tons K in 1989, and an estimated potassium hydroxide production that not exceeded 800.000 tons that year, or 557.476 tons K (Ullmann, 1998), and taking into account that no more than 11% of the K from potassium hydroxide could be discharged to the environment (see section 3.5 Identified Uses and exposure scenarios: 5% wide dispersive use + 6% in alkaline batteries; the rest is transformed in industrial uses; personal communnication from Occidental Chem. Corp. in 2000), not more than 61.322 tons K coming directly from potassium hydroxide reaches the environment, or 0.25% of the total anthropogenic potassium.
Applicant's summary and conclusion
- Conclusions:
- Production of potassium hydoxide results in release of potassium which is negligable in comparison of the global anthropogenic potassium.
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