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EC number: 205-736-8 | CAS number: 149-30-4
- 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
Endpoint summary
Administrative data
Description of key information
Additional information
2-mercaptobenzothiazole is stable to hydrolysis at pH 7 and ambient temperature, but it oxidizes rapidly in phosphate buffer at pH 6.5 with 60% conversion into MBTS within 2 hours and it also photolyzes rapidly in pure water with a half-life of 31.1 minutes. Only small difference was observed between the rate constants of direct photolysis in pure water and indirect photolysis in synthetic humic water suggesting that MBT is marginally susceptible to indirect photolysis. Brownlee et al. (1992) identified the photolysis products of MBT in water as 2 -benzothiazolone (BTon) and benzothiazole (BT). The indirect atmospheric oxidation rate by reaction with OH-radicals was estimated by using AOPWIN v1.92 to be 7.95 *10-11cm3/(molecule*sec) and half-life thus 9.5 h. The estimated half-life in air of MBT is much shorter than 24 hours and hence no potential for long-range transport of MBT in air is expected. The main abiotic degradation products of MBT and its oxidative product MBTS are BT (CAS: 95-16-9) and BTon (CAS: 934-34-9). In the EU-draft risk assessment, BT and BTon are reported as persistent under environmental conditions. Another described metabolite from MBT is MeSBT (615-22-5), which is also reported as resistant both to biodegradation and photolysis.
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