Registration Dossier
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Diss Factsheets
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EC number: 300-326-6 | CAS number: 93925-25-8
- 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
Direct photolysis probably not relevant due to rapid indirect photolysis and ozone reaction half-lives calculated by QSPR for representative components (highest value taken), little presence in the atmospheric compartment expected
Key value for chemical safety assessment
- Half-life in air:
- 1.3 h
- Degradation rate constant with OH radicals:
- 0 m³ molecule-1 s-1
Additional information
Experimental data on phototransformation in air are not available for the submission item. As this endpoint is not a standard information requirement in REACH and there is no indication from the Chemical Safety Assessment on the need to investigate further the fate and behaviour of the substance, no further testing is considered necessary. This is, however, a requirement only for the highest tonnage band > 1000 t per year according to the Corrigendum to Regulation (EC) No 1907/2006 of the European parliament and of the council of 18 December 2006 concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH), Annex X, 9.3.4., p L 136/118, published 2007-05-29 in the Official Journal of the European Union).
The vapour pressure data indicates that the submission item will not be present in relevant levels in the air. Due to the spectral properties of the submission item, i.e. the little absorption in the spectral range of natural daylight, direct photodegradation is assumed an irrelevant degradation mechanism. Regardless the expected low vaporization, indirect photolysis (reaction with hydroxyl radicals) can be assumed to reduce the presence in air significantly. The calculation with the QSPR software AOP (version 1.92a from the U.S. EPA EPI Suite version 4.10) was performed with two representative structures for high and low molecular weight (MW), assuming a 12-h day, 25 °C and a hydroxyl radical concentration of 1,500,000 OH/cm³. The QSPR calculation revealed half-lives of ca. 0.6 to 1.3 h (and the corresponding degradation rate constants) for the higher and lower MW representatives, respectively, with little difference between cis- and trans-isomers. Similar half-lives were estimated for the ozone reaction (AOP version 1.92) assuming an ozone concentration of 7E11 mol/cm³.
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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