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Diss Factsheets
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EC number: 204-278-6 | CAS number: 118-79-6
- 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
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Endpoint summary
Administrative data
Description of key information
Additional information
2,4,6-tribromophenol was shown to be hydrolytically stable and to photodegrade in air with a half life of 4.6 hours and the half-life for photolysis in water was 11.5 hours.
Studies show that enriched cultures of bacteria from wastewater and in water/sediment systems are capable of biodegrading 2,4,6-tribromophenol through reductive debromination, with transformation to 4-bromophenol. Degradation rates depend in part on temperature and whether these were other food sources present for the bacteria. Rapid (36 hours) degradation of 2,4,6-tribromophenol was observed enriched cultures of bacteria isolated from a marine sediment. It can be reasonably concluded that the test material is inherently biodegradable in both freshwater and marine conditions.
2,4,6-tribromophenol is also rapidly biodegraded in soil under aerobic conditions, with a geometric mean half life of 7 days at 20°C (DT50 5 - 10 days, 3 soils), indicating non-persistence. Mineralisation to carbon dioxide and the formation of bound residues were demonstrated. No single degradation product was greater than 10%.
The values used for the CSA are as follows:
Hydrolysis: hydrolytically stable
Photodegradation half-life: 4.6 h
Photolysis half-life:11 hr
DT50 in soil: 7 d at 20°C
Biodegradability: Inherently biodegradable
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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