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Diss Factsheets
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EC number: 269-212-0 | CAS number: 68201-32-1
- 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
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
Based upon the experimentally-determined octanol-water partition coefficients for SAS, as well as the high molecular weight and polarity of SAS constituents, the potential for bioconcentration and bioaccumulation of SAS in aquatic and benthic species is low. Predicted BCF values provide further support for this conclusion. Therefore, testing is not required for this endpoint.
Key value for chemical safety assessment
Additional information
No bioconcentration or bioaccumulation studies are available for SAS. However, bioconcentration (accumulation in organisms from water) and bioaccumulation (accumulation in organisms from water and diet) are often predicted based upon the octanol-water partition coefficient (Kow or Pow). Two studies were conducted in order to determine the octanol-water partition coefficient, and thus indirectly assess the bioaccumulation potential of SAS. The constituents in the water-soluble fraction of SAS (approximately 75% of the sample) demonstrated measured log Pows of <0, while the constituents in the methanol-soluble fraction of Soltex® (85% SAS) additive demonstrated measured log Pows of <0, 1.1, 3.2, and >6.2. These data show that the majority of the constituents in SAS have measured log Pows of <3, and do not indicate a potential for bioaccumulation. Additional characteristics of SAS arguing against bioaccumulation potential are the high molecular weight and polarity of the components. The TGD (European Commission, 2003) indicates that molecules with a MW greater than 700 g/mol are less likely to be absorbed and to bioconcentrate. The largest fraction of SAS components, resins, have MWs of 800 to 2000, and the other fractions have MWs of 500 to 900 or 1000. Therefore, even fractions of SAS found to be fat soluble would not likely be absorbed due to their high molecular weight.
In addition, the predicted bioconcentration factors (BCFs) from EPIWIN (USEPA, 2009) for representative structures of SAS were approximately 80, which is far below the PBT criteria cutoff for bioaccumulation concern from the Technical Guidance Document, E.C. (2003).
References:
E.C. 2003. Technical Guidance Document on Risk Assessment in support of Commission Directive 93/67/EEC on Risk Assessment for new notified substances, Commission Regulation (EC) N° 1488/94 on Risk Assessment for existing substances, Directive 98/8/EC of the European Parliament and of the Council concerning the placing of biocidal products on the market. Luxembourg, Office for Official Publications of the European Communities.
USEPA. 2010. EPI Suite v. 4.0. United States Environmental Protection Agency. Copyright 2000-2009.
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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