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Diss Factsheets
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EC number: 215-181-3 | CAS number: 1310-58-3
- 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
Biodegradation in soil
Administrative data
- Endpoint:
- biodegradation in soil: simulation testing
- 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:
- The high water solubility and low vapour pressure indicate that KOH will be found predominantly in the aquatic environment. KOH is present in the environment as potassium and hydroxyl ions, which implies that it will not adsorb on particulate matter or surfaces and will not accumulate in
living tissues. It is obvious that both potassium and hydroxyl ions have a wide natural occurrence (UNEP, 1995).
Atmospheric emissions as KOH aerosols should be rapidly neutralized by carbon dioxide, as occurs with NaOH (Cooper et al., 1979) or other acids and the salts (e.g. potassium carbonate) will be washed out by rain. For this reason potential atmospheric emissions of KOH are considered of no
concern. Significant emissions to the terrestrial environment are not expected during normal handling and use of KOH. Small terrestrial emissions will be neutralized by the buffer capacity of the soil. For this reason the environmental assessment can be limited to the aquatic compartment.
Data source
Reference
- Reference Type:
- publication
- Title:
- SIDS Initial Assessment Report KOH
- Author:
- SIDS
- Year:
- 2 002
- Bibliographic source:
- SIDS
- Report date:
- 2002
Materials and methods
Test guideline
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- The high water solubility and low vapour pressure indicate that KOH will be found predominantly in the aquatic environment. KOH is present in the environment as potassium and hydroxyl ions, which implies that it will not adsorb on particulate matter or surfaces and will not accumulate in
living tissues. It is obvious that both potassium and hydroxyl ions have a wide natural occurrence (UNEP, 1995).
Atmospheric emissions as KOH aerosols should be rapidly neutralized by carbon dioxide, as occurs with NaOH (Cooper et al., 1979) or other acids and the salts (e.g. potassium carbonate) will be washed out by rain. For this reason potential atmospheric emissions of KOH are considered of no
concern. Significant emissions to the terrestrial environment are not expected during normal handling and use of KOH. Small terrestrial emissions will be neutralized by the buffer capacity of the soil. For this reason the environmental assessment can be limited to the aquatic compartment.
Test material
- Reference substance name:
- Sodium hydroxide
- EC Number:
- 215-185-5
- EC Name:
- Sodium hydroxide
- Cas Number:
- 1310-73-2
- Molecular formula:
- HNaO
- IUPAC Name:
- sodium hydroxide
Constituent 1
Results and discussion
% Degradation
- Remarks on result:
- other: see remarks
- Remarks:
- The high water solubility and low vapour pressure indicate that KOH will be found predominantly in the aquatic environment. KOH is present in the environment as potassium and hydroxyl ions, which implies that it will not adsorb on particulate matter or surfaces and will not accumulate in living tissues. It is obvious that both potassium and hydroxyl ions have a wide natural occurrence (UNEP, 1995). Atmospheric emissions as KOH aerosols should be rapidly neutralized by carbon dioxide, as occurs with NaOH (Cooper et al., 1979) or other acids and the salts (e.g. potassium carbonate) will be washed out by rain. For this reason potential atmospheric emissions of KOH are considered of no concern. Significant emissions to the terrestrial environment are not expected during normal handling and use of KOH. Small terrestrial emissions will be neutralized by the buffer capacity of the soil. For this reason the environmental assessment can be limited to the aquatic compartment.
- Transformation products:
- not specified
Applicant's summary and conclusion
- Conclusions:
- The high water solubility and low vapour pressure indicate that KOH will be found predominantly in the aquatic environment. KOH is present in the environment as potassium and hydroxyl ions, which implies that it will not adsorb on particulate matter or surfaces and will not accumulate in
living tissues. It is obvious that both potassium and hydroxyl ions have a wide natural occurrence (UNEP, 1995).
Atmospheric emissions as KOH aerosols should be rapidly neutralized by carbon dioxide, as occurs with NaOH (Cooper et al., 1979) or other acids and the salts (e.g. potassium carbonate) will be washed out by rain. For this reason potential atmospheric emissions of KOH are considered of no
concern. Significant emissions to the terrestrial environment are not expected during normal handling and use of KOH. Small terrestrial emissions will be neutralized by the buffer capacity of the soil. For this reason the environmental assessment can be limited to the aquatic compartment. - Executive summary:
The high water solubility and low vapour pressure indicate that KOH will be found predominantly in the aquatic environment. KOH is present in the environment as potassium and hydroxyl ions, which implies that it will not adsorb on particulate matter or surfaces and will not accumulate in
living tissues. It is obvious that both potassium and hydroxyl ions have a wide natural occurrence (UNEP, 1995).
Atmospheric emissions as KOH aerosols should be rapidly neutralized by carbon dioxide, as occurs with NaOH (Cooper et al., 1979) or other acids and the salts (e.g. potassium carbonate) will be washed out by rain. For this reason potential atmospheric emissions of KOH are considered of no
concern. Significant emissions to the terrestrial environment are not expected during normal handling and use of KOH. Small terrestrial emissions will be neutralized by the buffer capacity of the soil. For this reason the environmental assessment can be limited to the aquatic compartment.
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