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EC number: 310-060-2 | CAS number: 102110-59-8
- 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
The main constituents of FeSi silicate/slag are oxidized silicon and iron, both very common elements in the environment. Most living organisms contain at least trace quantities of silicon and iron. Bioaccumulation of Si and Fe and other significant constituent elements is well-known (or at least sufficiently known) for hazard assessment purposes, and no specific reasons have emerged to study the issue further in this context. |
For naturally occurring inorganic substances such as metals, bioaccumulation is a complex issue, and many processes are available to modulate both the accumulation and potential toxic impact. The issue becomes even more complex if the substance under evaluation is a mixture of metals/elements. Adaptation and mechanisms to handle these common metals at the systemic level exists to a certain extent. Most species tend to regulate internal concentrations of these metals through active regulation, storage, or a combination of active regulation and storage over a wide range of environmental exposure conditions.
Silicon has no tendency or a low intrinsic tendency for bioconcentration and bioaccumulation if taken up passively by organisms. Si compounds are so abundant in the environment that most living organisms contain at least trace quantities of silicon. For some species Si is an essential element taken up actively, while for others Si is not essential but it is still taken passively (Si transport and distribution follows that of water). In these cases it needs to be excreted or passivated in other ways. Many organisms such as diatom algae, radiolarians, flagellates and gastropods have silicate skeletal structures.
Iron is a biologically essential metal actively taken up and to some extent regulated by aquatic and terrestrial organisms. In one study, bioaccumulation factors of 2756 – 9622 were measured for the blue mussel (Mytilus edulis) when exposed to initial total iron concentration of 0.009 mg/l for 42 days at 10oC (Pentreath, 1973). The results support a sequestering mechanism for active uptake of iron from seawater to the organism. In a study on ferrous sulfate heptahydrate, it was shown that BCF values were less than 20 for the fishCyprinus sp.in a 28-day study using flow-through (CERI, 2001).
References:Pentreath, R.J., 1973. The accumulation from water of 65Zn, 54Mn, 58Co and 59Fe by the mussel, Mytilus edulis. Journal of the Marine Biological Association of the. 53:1 127-14.
CERI, Tokyo, 2005. SIDS dossier for 7782-63-0. NITE CHRIP (Public database). Nationalofand Evaluation. Chemicals Evaluation and Research Institute (CERI);.
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