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EC number: 203-052-4 | CAS number: 102-77-2
- 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
Although MBS is not readily biodegradable with a biodegradability of 0% observed in 28 days, it is abiotically unstable in aquatic environment with a hydrolysis half-life of ca. 24 hours at pH 7.0 and 25°C and with a half-life of direct photolysis in water of 0.78 hour. The hydrolysis products were identified to be mercaptobenzothiazole (CAS: 149-30-4), benzothiazole (CAS: 95-16-9) and morpholine (CAS: 110-91-8). The identified breakdown products are also not readily biodegradable. MBS is not bioaccumulative with an estimated BCF of 81.34 l/kg. The hydrolysis products of MBS, such as MBT, BT and morpholine, also have no bioaccumulation potential with the experimentally determined BCFs all below 10. At environmentally relevant pH and 25°C the logKoc of MBS is determined to be 2.84, which indicates a moderate adsorption potential. The hydrolysis products, such as MBT and BT, also have a moderate adsorption potential in soil/sediment with the log Koc of 2.51 – 3.55 and 3.0, respectively. Morpholine however has only a low affinity to adsorption with a logKoc of 0.867. MBS is essentially non-volatile with the calculated Henry's law constant lower than 5.52*10-7 Pa m3/mol at 25°C. The estimated half-life in air of MBS is much shorter than 48 hours; and hence no potential for long-range transport of MBS in air is expected. The distribution of MBS in a "unit world" was calculated according to the Mackay fugacity model level I based on the physico-chemical properties. The main target compartment for MBS is water of 71.3 % and sediment of 14.32 %, followed by soil of 14.16 %.
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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