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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
Endpoint summary
Administrative data
Description of key information
Additional information
Summary of available data
Acute toxicity test results are available for SAS for three trophic levels: fish, invertebrates, and algae. Marine species were used and standard test methods were followed. The 96 hour LC50 for fish (juvenile turbot, Scophthalmus maximus), was determined to be > 240 mg/L. The 48 hour LC50 for the marine invertebrate, Acartia tonsa, was 380 mg/L and the NOEC was 180 mg/L. For the marine alga, Skeletonema costatum, the 72 hour EbC50 was 240 mg/L, the ErC50 was 390 mg/L, and the NOEC was 125 mg/L. The effects upon algae were attributed to the reduction in light penetration (and therefore photosynthesis) caused by the colored nature of the test solutions, rather than any intrinsic toxicity of SAS.
In addition, aquatic toxicity tests have been conducted with Soltex® Additive, a commercial product that contains 85% SAS. These tests are considered as supporting information for SAS. Tests were conducted using the water-accomodated fraction (fish), liquid phase or suspended particulate phase (crustaceans), and liquid phase (algae). In tests with the water-accomodated fraction of Soltex® Additive, the 96 hour LC50 for Scophthalmus maximus was 1672 mg/L. In a test of drilling fluid containing SAS, a 96 hour LC50 of 420,000 ppm was obtained for the invertebrate, Mysidopsis bahia. For the invertebrate Acanthomysis sculptata, the 96 hour LC50 was 155,000 ppm for exposure to the liquid phase of Soltex® Additive, and 205,000 ppm for exposure to the suspended particulate phase. The 95 hour EC50 based upon growth rate and biomass was 4,000 and 8,300 mg/L, respectively, for the alga Skeletonema costatum exposed to a 1% solution of Soltex® Additive.
The acute toxicity of SAS to aquatic organisms has been determined for vertebrates, invertebrates and plants. Additional acute toxicity data are available for Soltex® Additive. No additional acute toxicity testing is necessary.
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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