Registration Dossier
Registration Dossier
Diss Factsheets
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EC number: 701-427-1 | CAS number: -
- 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

PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Modified Small Vinyl Ester is a highly viscous prepolymer, which is placed on the market for industrial use only as an approximately 50% solution in a reactive diluent. Modified Small Vinyl Ester solutions are used under controlled conditions to ensure safe use and to avoid release of primarily the reactive diluent to the environment. Direct and indirect exposure of water is assessed to be negligible and long-term effects in aqueous species are judged to be unlikely.
Persistent: In case of incidental release to the environment, when exposed to light, Modified Small Vinyl Ester will polymerise to an extremely stable polymer that is highly insoluble in water. This property means the substance meets the persistent (P) and very persistent (vP) criteria based on biodegradation and hydrolysis. Ready biodegradability of Modified Small Vinyl Ester was assessed in a modified Sturm test compliant with GLP and, although Modified Small Vinyl Ester did not inhibit microbial activity in the toxicity control, no significant biodegradation occurred. The longest hydrolysis half-life in freshwater of the constituents of Modified Small Vinyl Ester is 85 days at 20 °C (at pH=7), which is greater than the P-criterion (half-life of < 40 days).
Bioaccumulation: In case of incidental release to the environment, Modified Small Vinyl Ester is considered unlikely to bioaccumulate in aquatic organisms. The octanol-water partition coefficient (Kow) for Modified Small Vinyl Ester was determined using the HPLC method at neutral pH and at pH = 1.5 to be 4.3, which is below the Bioaccumulation (B) criterion of <4.5 and on this basis the substance does not meet the B-criterion.
Toxicity: In case of incidental release to the environment, Modified Small Vinyl Ester is unlikely to be toxic to aquatic organisms at the water solubility of the substance, which is above the T-criterion of < 0.01 mg/L NOEC for freshwater or marine organisms.
In conclusion, Modified Small Vinyl Ester meets the P-criterion, but is not considered to be a PBT substance based on its unlikely potential for bioaccumulation and low toxicity.
- Likely routes of exposure:
Modified Small Vinyl Ester is produced in closed systems under controlled conditions and is used by industrial and professional users, only. Release to the environment is evaluated to be incidental only. If Modified Small Vinyl Ester is incidentally released to the environment, it will polymerise to an extremely stable polymer, binding all Modified Small Vinyl Ester covalently in the polymer matrix that is highly insoluble in water. The final articles manufactured from Modified Small Vinyl Ester are extremely stable at normal temperature and pressure. Thus, exposure of the aqueous environment is evaluated to be negligible.
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