Registration Dossier
Registration Dossier
Diss Factsheets
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EC number: 203-620-1 | CAS number: 108-83-8
- 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
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
The estimated second-order rate constant for reaction with photochemically-generated hydroxyl radical is 17.5E-12 cm3/molecule*sec at 25 degrees C.
Key value for chemical safety assessment
- Half-life in air:
- 22 h
Additional information
The atmospheric fate of the 2,6-diemethylheptan-4-one substance was estimated using the U.S. EPA AOPWIN (v1.92a) software. An atmospheric half-life of 22 hrs (0.9 days) was estimated, based on predicted second-order reaction rate constant with photochemically-generated hydroxyl radical. This prediction was based on an ambient hydroxyl radical concentration of 500,000 molecules/cm3 and 24 hr photoday. Predictive accuracy of the software was evaluated by comparing measured and predicted rate constants for three analog substances: 2 -butanone; 3 -pentanone; and 3 -hexanone. Predicted values agreed within a factor of 1.3 of the experimental values, thereby validating the prediction for 2,6-diemethylheptan-4-one. Based on this estimation, the substance is not regarded as persistent in the atmosphere (i.e., half-life < 2 days).
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