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EC number: 262-967-7 | CAS number: 61788-32-7
- 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

PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is PBT / vPvB
- Justification:
At least o-terphenyl fulfils both vP and vB criteria. As o-terphenyl occurs in significant concentrations in the UVCB substance (> 0.1 %), the UVCB “terphenyl, hydrogenated” is considered to fulfil vPvB criteria.
The UVCB substance was assessed by evaluating the different relevant constituents present in the substance. Detailed information in provided in Section 8 of the CSR.
The group level is used to group the constituents into groups of “similar” constituents (see Table 1 of CSR for an overview of the different groups, what they contain and their concentration range). In total 10 groups were identified:
Group T: the group containing the terphenyl constituents,
Group HT1: the group containing terphenyl structures of which one ring is hydrogenated,
Group HT2: the group containing terphenyl structures of which two rings are hydrogenated,
Group HT3: the group containing terphenyl structures of which three rings are hydrogenated,
Group Q: the group containing the quaterphenyl constituents,
Group HQ1: the group containing quaterphenyl structures of which one ring is hydrogenated,
Group HQ2: the group containing quaterphenyl structures of which two rings are hydrogenated,
Group HQ3: the group containing quaterphenyl structures of which three rings are hydrogenated,
Group P: the group containing the pentaphenyl constituents,
Group ‘other’ (1 & 2): other non-defined structures/constituents.
Justification of vPvB classification for o-terphenyl:
For ortho-terphenyl and meta-terphenyl, the potential for primary and ultimate degradation is demonstrated in studies on ortho-terphenyl. According to the approach of the study authors the half-life for disappearance of parent substance is below the threshold for freshwater and the original calculations based on study results revealed very short dissipation half-lifes- demonstrating that the mixture as tested does not persist in soil. Based on recent evaluation results of the eMSCA, the modelling approach chosen by the study authors was not appropriate to describe the degradation of the compound in soil. According to the outcome of remodelling of the study results by the eMSCA terphenyl fulfils the vP criterion in soil based on the degradation study by Monsanto Company (1989) and remodelling by eMSCA. The different isomers of terphenyl, quaterphenyl, and polyphenyl were not differentiated in this study. Nevertheless the reliability of this soil dissipation test is limited due to the fact that information on the composition of the tested mixture is missing. In general eMSCA considers that degradation of a hydrocarbon in a mixture study (such as Monsanto Company (1989)) may be overestimated compared to testing of each constituent separately (due to co-metabolism). However, in the present case the possible overestimation is acceptable as the half-life for terphenyl fulfills the vP criterion.
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