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Diss Factsheets
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EC number: 931-583-8 | CAS number: 66071-92-9
- 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
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
- The partition coefficients (log Pow) of the major methanol soluble components of SCP liquor are <2.1. Substances with partition coefficients (log POW) >3 were not detected, but SCP liquor is known to contain different chemical classes such as resins etc. with partition coefficients higher than the described value. Therefore the method is of limited reliability for a UVCB substance such as SCP liquor.
- Column 2 of Annex VII (7.8) states that the study on partition coefficient does not need to be conducted if the substance is inorganic or if the test can not be performed (the substance is not possible to obtain a sufficiently pure substance).
- Given the numerous organic and inorganic constituents in SCP liquor, any assay used to estimate the partitioning properties would yield a range of values reflecting this complex mixture. In addition, there is no analytical method to do this test in a catch-all way.
Key value for chemical safety assessment
- at the temperature of:
- 35 °C
Additional information
The partition coefficients were estimated by an adapted HPLC-method, using only the methanol soluble parts. The temperature during the procedure was 35 °C. The actual pH value of the mobile phase during the test was 7.0. The equation of the linear regression for the reference substances was: log (capacity factor) = 0.6385 x log (Pow) – 0.3552. Several unidentified compounds were found in the (log Pow) range of <0 to 2.1. The partition coefficients (log Pow) of the major methanol soluble components of SCP liquor 1 are < 2.1. Substances with partition coefficients (log Pow) >3 were not detected but SCP liquor is known to contain different chemical classes such as resins etc. with partition coefficients higher than the described value.
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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