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Diss Factsheets
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EC number: 202-046-9 | CAS number: 91-17-8
- 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 water
Administrative data
- Endpoint:
- phototransformation in water
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 1991
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Indirect photolysis study in the presence of catalyzers. Reliable but not relevant for environmental fate assessment.
Data source
Reference
- Reference Type:
- publication
- Title:
- Mild oxidation of cyclic C6-C10 hydrocarbons in liquid phase at room temperature by heterogeneous photocatalysis
- Author:
- Herrmann JM, Mu W and Pichat P
- Year:
- 1 991
- Bibliographic source:
- Stud. Surf. Sci. Catal. 59, 405-412
Materials and methods
- Study type:
- indirect photolysis
- Principles of method if other than guideline:
- UV ilumination of TiO2 suspension
- GLP compliance:
- no
Test material
- Reference substance name:
- Decalin
- IUPAC Name:
- Decalin
- Details on test material:
- cis-decahydronaphthalene from Aldrich, trans-decahydronaphthalene of unknown origin. No data on purity. Employed as received
Constituent 1
Study design
- Radiolabelling:
- no
- Analytical method:
- gas chromatography
- Buffers:
- none
- Light source:
- other: mercury lamp
- Light spectrum: wavelength in nm:
- > 300
- Details on light source:
- Philips HPK 125 W mercury lamp, radiant flux measured with calibrated radiometer (United Technology, model 21 A)
Sensitiser (for indirect photolysis)
- Type of sensitiser:
- other: TiO2
- Details on sensitiser:
- suspended in 10 ml test material
- Details on test conditions:
- Apparatus: Cylindrical static slurry photoreactor of 90 cm3 with bottom optical window of approx. 4 cm in diameter transmitting wavelengths > 300 nm.
Temperature: Room temperature
- Reference substance:
- no
- Dark controls:
- no
Results and discussion
- Rate constant (for indirect photolysis):
- other: not measured
- Transformation products:
- yes
Identity of transformation productsopen allclose all
- No.:
- #1
Reference
- Reference substance name:
- Unnamed
- IUPAC name:
- 2-Decalone
- Identifier:
- common name
- Identity:
- 2-Decalone
- No.:
- #2
Reference
- Reference substance name:
- Unnamed
- IUPAC name:
- 1-Decalone
- Identifier:
- common name
- Identity:
- 1-Decalone
- No.:
- #3
Reference
- Reference substance name:
- Unnamed
- IUPAC name:
- 2-Decalol
- Identifier:
- common name
- Identity:
- 2-Decalol
- No.:
- #4
Reference
- Reference substance name:
- Unnamed
- Inventory number:
- InventoryMultipleMappingImpl [inventoryEntryValue=EC 204-696-9]
- Details on results:
- The cis isomer was found at least 10 times more reactive with a selectvitiy of 81 % in mild oxidation products and 19 % in CO2. The relative concentrations of the non-CO2 oxidation products were 86 (#1) : 7 (#2) : 7 (#3). The preferential attack at position 2 could be due to the steric mode of adsorption of cis-decahydronaphthalene at the TiO2 surface.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- Decahydronaphthalene was photodegraded in presence of TiO2 to 2-decalone (main product), 1-decalone and 2-decalol as well as some carbon dioxide. Half-life was not estimated. The cis isomer was at least 10 times more reactive than the trans isomer.
- Executive summary:
Decahydronaphthalene was photodegraded in presence of TiO2 to 2-decalone (main product), 1-decalone and 2-decalol as well as some carbon dioxide. Half-life was not estimated. The cis isomer was at least 10 times more reactive than the trans isomer
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