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Diss Factsheets
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EC number: 204-062-1 | CAS number: 115-07-1
- 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
Endpoint summary
Administrative data
Description of key information
Additional information
Propene is a gas at standard temperature and pressure and is expected to partition primarily to air, therefore environmental fate tests may not be relevant. Measured data are not available for propene for this endpoint. Due to the practical difficulties associated with the environmental fate testing of gases (i.e. maintaining exposure concentrations) the use of QSAR modelled estimates is an appropriate alternative.
As propene is expected to primarily partition to air, its fate in the atmosphere is an important consideration, although it is not a REACH requirement. Propene is a gas at room temperature and is expected to rapidly degrade by indirect photolysis in air. The dominant process is by reaction with hydroxyl radicals, although it can also react with ozone. Atkinson (1985) recommended a rate constant of 2.63E-11 cm3/mol/sec for the reaction rate with hydroxyl radicals and Atkinson and Carter (1984) recommended a rate constant of 1.13E-17 cm3/mol/sec for the reaction rate with ozone. These rate constants equate to half lives of 14.6 and 23.7 hours respectively. These data indicate that indirect photolysis is expected to contribute significantly to degradation of propene in the environment.
Propene has the potential to rapidly volatilise from surface waters, based on a calculated Henry's Law constant of 1.6E4 Pa.m3/mole. Propene partitioning to water will not undergo hydrolysis, as it does not contain a functional group that can be displaced by nucleophilic substitution. It is expected to have a low potential for bioaccumulation and adsorption to soil and sediment based on its experimental log Kow of 1.77. Data are not available to demonstrate that propene is readily biodegradable, and for the purposes of the risk assessment, ready biodegradability will not be assumed. Data from two biodegradation QSAR models have been calculated for comparison with the screening criteria for persistence in the PBT assessment and to aid the classification and labelling of propene.
Propene is not expected to persist in the environment because, although not readily biodegradable, it is expected to have a low potential for adsorption to organic matter, a low potential for bioaccumulation, and is rapidly degraded in the atmosphere by photooxidation reactions. Therefore, in the PBT assessment, propene is considered to be not P/vP and not B/vB.
The CSA has not identified the need to further investigate the degradation of propene in water, sediment or soil due to the expected partitioning of propene to the atmosphere. Based on the environmental fate data, propene is not expected to persist in the environment.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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