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Diss Factsheets
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EC number: 202-394-1 | CAS number: 95-14-7
- 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 soil
Administrative data
Link to relevant study record(s)
Description of key information
Key value is set to default value of 180 days in line with remark 2 to Table 7.11-2 TGD IR/CSA R.7c
Key value for chemical safety assessment
- Half-life in soil:
- 180 d
- at the temperature of:
- 20 °C
Additional information
Breedveld et al. examined the aerobic and anaerobic degradation of Benzotriazole in the terrestrial compartment. Therefore, series of batch reactors were inocculated with microorganisms from the area of the abandoned airport Gardermoen, Norway and airport Fornebu, Norway. Benzotriazole (1 mg/L) as substrate as well as other substances for achieving necessary oxygen consumption (benzoate or glycol) were added. As control (aerobic conditions) CuSO4 was used. After five month period no degradation of the test substance was observed under anaerobic conditions. In parallel series under aerobic conditions degradation of Benzotriazole in liquid phase was observed. Since similar loss has been observed in the control evaporation is assumed to be the major process responsible.
In addition, available information on inhibition of nitrification in topsoil samples indicate the strong inhibitory potential of Benzotriazole. In observations with 45 heterocyclic N compounds in three different soils significant inhibition of nitrification (35, 55, and 81 %) at 12 µg Benzotriazole /g soil was found (McCarty et al.).
In summary, based on the existing information it can be concluded that Benzotriazole and its conjugated sodium salt are stable with regard to biodegradation in soils under environmental conditions. Available information is considered to be adequate for regulatory purposes. Biodegradation in soil is expected to show a lower rate of degradation in general. As Benzotriazole shows a low biodegradation behaviour in the aquatic environment the same result is expected for test in soil. Hence, the substance is classified for long-term hazards in the environment. For the PBT assessment the default half-life for non-readily biodegradable substances is used (DT50 > 180 days) while for the chemical safety assessment the substances are considered as non-biodegradable in soil under environmental conditions.
Breedveld GD et al. (2002) Triazoles in the terrestrial environment – Final report, NGI report no. 20001103-1,http://www.statsbygg.no/FilSystem/files/prosjekter/fouprosj/miljo/50192_BTfinalreport.pdf
McCarty GW, Bremmer JM (1989) Inhibition of nitrification in soil by heterocyclic nitrogen compounds, Biol Fertil Soils, 8:204-211.
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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