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EC number: 401-620-8 | CAS number: 87731-18-8 VIOLIFF
- 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 water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The substance is readily biodegradable and shows 67% degradation in 28 days in an OECD TG 301D test.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
- Type of water:
- freshwater
Additional information
The biodegradability of the substance was tested in a Closed Bottle Test according to OECD 301D and in compliance with GLP. Test substance at a concentration of ca. 2 mg/L was inoculated with activated sewage sludge from an STP treating predominantly domestic sewage for 28 days. At inoculation days, 0, 5, 15 and 30, the oxygen consumption was measured and biodegradation determined as % of ThOD. Biodegradation of the substance started directly at day 0 and increased up to 67% at day 15. No further degradation was found thereafter. Although the study design does not allow to determine whether or not the 14 -day window was met, based the rapid biodegradation to a value of well above the cut-off criterion of 60% at day 15, it is considered justified to conclude that the substance is readily biodegradable.
For Violiff there are three screening studies available. The Closed Bottle Test is presented above. There is a Respirometric Method (modified MITI Test I) according to OECD 301C (IFF, 2015). In this test Violiff showed only minor biodegradation on day 28 (8% based on BOD and 7% based on DOC). Mean decrease of test material (via GC analysis) on day 28 was 55%. Several alcohol and ketone metabolites were identified. In a Manometric Respirometry Test according to OECD 301F (Givaudan, 2011) the test substance tested at 30 mg/L did undergo 60% biodegradation after 28 days (73% after 50 days).
The available data on biodegradation are all considered valid studies. In this case positive results can be considered valid, irrespective of negative results, when guideline criteria are fulfilled. Although the pass window was not fulfilled in the OECD 301F and could not be assessed in the OECD 301D it has to be noted that the substance is a mixture and therefore degradation percentage should be evaluated at the end of the test period. In both the OECD 301D and 301F the degradation percentage reached was equal or higher to 60% after 28 days. Both studies should be interpreted as readily degradable and therefore meet the criterion rapidly degradable under GHS.
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