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EC number: 294-785-9 | CAS number: 91770-03-5
- 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
- Name:
- 294-785-9
- Type of composition:
- boundary composition of the substance
- Reference substance:
- 294-785-9
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Persistence
Not P or vP
The test item may not be considered readily biodegradable under aerobic conditions since biodegradation ≥ 60% ThIC was not achieved within a 10-day window of reaching 10% ThIC. However, as a UVCB, the test item may be considered rapidly degradable since the pass level of 60 % of ThIC was achieved within 28 days (OECD 310).
Bioaccumulation
Not B or vB
Log Kow was determined using the HPLC method (OECD 117). The calculated log Kow as 11.7, far in excess of the cut off value of 10 which is cited in REACH guidance as a value suggesting that that BCF in aquatic organisms would be less than 2000 in a weight of evidence approach.
Certain components have a MW less than 550. Using EPIWIN for the lower molecular weight Bioaccumulation Estimates (BCFBAF v3.01). Log Kow used: 5.82 (estimated) equivalent MW 369.36:
Log BCF from regression-based method = 2.136 (BCF = 136.7 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -0.4253 days (HL = 0.3755 days)
Log BCF Arnot-Gobas method (upper trophic) = 2.147 (BCF = 140.4)
Log BAF Arnot-Gobas method (upper trophic) = 2.150 (BAF = 141.1)
For the high molecular weight substance with a log Kow >11 uptake of this substance would be highly unlikely. Further evidence of very limited uptake stems from the long term daphnid and algae NOECs which are far greater than the solubility limit of the substance and the acute fish in which no effects were found (although due to the short duration this study is less pertinent to the evaluation). Furthermore, mammalian toxicity is also very low with no systemic effects beyond minor effects on liver weight which supports the argument that for the whole substance, levels of absorption are low and there is no indication that the toxic effects are increasing over time.
Toxicity
Not T
Based on available evidence, and in accordance with Regulation (EC) No. 1272/2008, the substance does not meet the criteria for classification as a carcinogen (category 1A or 1B), germ cell mutagen (category 1A or 1B) or reproductive toxin (category 1A, 1B or 2). Furthermore, there is no evidence of chronic toxicity and the substance does not meet the criteria for classification for specific target organ toxicity (STOT RE 1 or STOT RE 2). With respect to the environment, the substance is not classified as environmentally hazardous when compared to criteria for rapidly degradable substances given in Regulation (EC) No. 1272/2008, and the chemical safety assessment raises no concerns. Specifically, the lowest NOELR value obtained during long-term testing of three trophic levels was 4.5 mg/L (algae) and this value is higher than the NOEC threshold of 0.01 mg/L given by ECHA Guidance on Information Requirements and Chemical Safety Assessment Chapter R.11: PBT/vPvB assessment (Version 3.0; June 2017).
- Likely routes of exposure:
Human: demal
Environment: waste water
Referenceopen allclose all
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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