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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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
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Phototransformation in air
Administrative data
Link to relevant study record(s)
- Endpoint:
- phototransformation in air
- Type of information:
- (Q)SAR
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a (Q)SAR model, with limited documentation / justification, but validity of model and reliability of prediction considered adequate based on a generally acknowledged source
- Remarks:
- The applicability domain of the AOPWIN (v.1.92a) modul is not defined finally. Nevertheless, structural fragments of Benzotriazole as well as other chemical substances with compareable molecular weight have been considered in the model. In addition, the group of Benzotriazoles have been explicitly listed in the substances group within range of the model.
- Guideline:
- other: REACH Guidance on QSARs R.6, May 2008
- Principles of method if other than guideline:
- AOPWIN estimates the rate constant for the atmospheric, gas-phase reaction between naturally occurring hydroxyl radicals and organic chemicals.
- Reference substance:
- not specified
- DT50:
- 10.7 d
- Test condition:
- 12-hr day, 1.5E6 OH/cm3, 25 °C
- Reaction with:
- OH radicals
- Rate constant:
- 0 cm³ molecule-1 d-1
- Transformation products:
- not specified
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- Based on the calculations with AOPWIN 1.92a the half-life of atmospheric 1H-Benzotriazole was estimated to be about 10.7 days.
- Executive summary:
In absence of experimental data a QSAR estimation for the atmospheric phototransformation of 1H-Benzotriazole was performed by using AOPWIN 1.92a to calculate the gas-phase reaction with natural occurring hydroxyl radicals. The estimation methods of this software are based primarily on the work of Atkinson and co-workers in 1995. Based on the given conditions a half-life of 10.7 days was estimated.
Reference
Description of key information
Key values were estimated by AOPwin v1.92.
Key value for chemical safety assessment
- Half-life in air:
- 10.7 d
- Degradation rate constant with OH radicals:
- 0 cm³ molecule-1 d-1
Additional information
Based on the estimation by AOPwin v1.92 the theoretical half-life of the substance is 10.7 days assuming degradation by reaction with atmospheric hydroxyl radicals. Due to the low volatility of the substance, this reaction plays only a minor role in the environmental fate of Benzotriazole.
As this study is not a standard information requirement in REACH and there is no indication from the CSA on the need to further investigate the fate and behaviour of the substance, no further testing is considered necessary.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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