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Diss Factsheets
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EC number: 270-451-8 | CAS number: 68440-34-6
- 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
Based on physico-chemical properties, the main target compartments for the environmental distribution of Fatty acids, tallow, zinc salts would be soil and sediment. However, as the substance is readily biodegradable and has potential to adsorb (log Koc > 3), it is expected to be eliminated in sewage treatment plants to a high extent. Release to surface waters, and thereby exposure of sediment, is therefore very unlikely. In soil, the substance is expected to be rapidly removed via biodegradation. The transport and distribution of zinc has been comprehensively reviewed in the EU Risk Assessment Report for Zinc metal (ECB, 2008).
Transport and distribution of zinc
For metals, the transport and distribution over the different environmental compartments e.g. the water (dissolved fraction, fraction bound to suspended matter), soil (fraction bound or complexed to the soil particles, fraction in the soil pore water, etc.) is described and quantified by partition coefficients. Partition coefficients for zinc in freshwater have been reviewed in the EU Risk Assessment Report for Zinc metal (ECB, 2008). Based on the experimental evidence, a partition coefficient for the distribution between solid particulate matter and water (log Kpsusp) of 5.04 has been defined for EU waters and was used throughout the risk assessment.
The partition coefficient for the distribution between sediment and water (Kpsed) was estimated in the Risk Assessment Report from that for particulate matter, as follows: Kpsed= Kpsusp/ 1.5, based on the average difference in concentrations of zinc and other metals in both media. For zinc this results in a Kpsed of 73000 L/kg or log Kpsed 4.86 (ECB, 2008).
These partition coefficients based in the Risk Assessment Report have been used in other legislative processes in the EU (e.g. the water framework directive) and will also be used for REACH.
For marine water, a partition coefficient water/suspended matter of 6010 L/kg (log value 3.78) has been derived.
For soil, a solids-water partitioning coefficient of 158.5 L/kg (log value 2.2) was determined experimentally on 11 American soils. This value was used in the risk assessment for zinc.
Literature data on partition coefficients are entered under Section 5.6. of the technical dossier.
Conclusion:
The main target compartment of Fatty acids, tallow, zinc salts is expected to be soil, in which the substance will adsorb to solid organic matter. The organic moiety will be rapidly biodegraded. Remaining zinc has also potential to adsorb to solid particles; however, its partitioning strongly depends on the environmental conditions.
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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