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EC number: 235-227-6 | CAS number: 12136-45-7
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data

Biotransformation and kinetics
Administrative data
- Endpoint:
- biotransformation and kinetics
- Type of information:
- experimental study
- 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
Data source
Referenceopen allclose all
- Reference Type:
- review article or handbook
- Title:
- Potash facts
- Author:
- Gething, P.A.
- Year:
- 1 991
- Bibliographic source:
- International Potash Institute (IPI), Basel.
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 995
Materials and methods
- Principles of method if other than guideline:
- Biotransformation and kinetics of potassium as one of the three major plant nutrients
- GLP compliance:
- not specified
- Type of medium:
- plant
Test material
- Reference substance name:
- Dipotassium oxide
- EC Number:
- 235-227-6
- EC Name:
- Dipotassium oxide
- Cas Number:
- 12136-45-7
- Molecular formula:
- K2O
- IUPAC Name:
- Potassium oxide
Constituent 1
Results and discussion
Any other information on results incl. tables
Biotransformation and kinetics of potassium asone of the three major plant nutrients, is well reviewed:
Uptake of K in plants is highly selective and closely coupled to metabolic activity. It is characterized by high mobility in plants at alllevels, within individual cells, within tissues,and in long-distance transport via the xylem andphloem. K is the most abundant cation in the
cytoplasm and its accompanying anions make amajor contribution to the osmotic potential of
cells. K is not metabolized and it forms only weak complexes in which it is readily exchangeable.
Applicant's summary and conclusion
- Conclusions:
- Biotransformation and kinetics of potassium as one of the three major plant nutrients, is well reviewed:
Uptake of K in plants is highly selective and closely coupled to metabolic activity. It is characterized by high mobility in plants at all levels, within individual cells, within tissues, and in long-distance transport via the xylem and phloem. K is the most abundant cation in the
cytoplasm and its accompanying anions make a major contribution to the osmotic potential of
cells. K is not metabolized and it forms only weak complexes in which it is readily exchangeable. - Executive summary:
Biotransformation and kinetics of potassium as one of the three major plant nutrients, is well reviewed:
Uptake of K in plants is highly selective and closely coupled to metabolic activity. It is characterized by high mobility in plants at all levels, within individual cells, within tissues, and in long-distance transport via the xylem and phloem. K is the most abundant cation in the cytoplasm and its accompanying anions make a major contribution to the osmotic potential of cells. K is not metabolized and it forms only weak complexes in which it is readily exchangeable.
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