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EC number: 915-037-6 | CAS number: -
- 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
Calcium and silicon are one of the major elemental species and present in several primary and secondary minerals in soils and Ca is essential nutrient for almost all and Si for some soil living and aquatic species.
The main constituents of CaSi are not known to bioaccumulate in aquatic, sediment or soil species at harmful levels. Certain species may actively concentrate Si and Ca in their body and both elements are essential elements or beneficial nutrients. Some species or life stages may still be naturally/ecologically sensitive to direct or indirect effects caused by too high or too low background levels of these elements.
SiliconThe inorganic Si species have no tendency or low intrinsic tendency for bioconcentration and bioaccumulation if taken up passively by organisms. Silicic acid Si(OH)4is known to be the major bioavailable form for aquatic organisms and it plays an important role in the biogeochemical cycle of Si. For some species Si is essential element taken up actively, while for others Si is not essential but still taken passively (Si transport and distribution follows that of water) and need to be excreted out or passivated by way or other. Silicon is known to not be bio concentrated or bio accumulated to aquatic or terrestrial organisms at harmful levels.
CalciumThe behavior and accumulation potential of Ca is well known, since the element is very common in the environment and found also allover in biota. It has been observed that Ca ingested and absorbed via diet partitions rapidly to skeletons of vertebrate animals and shells of aquatic invertebrates. The ionic form is considered to be bioavailable (e.g. for plants). Calcium is not known to be bio concentrated or bio accumulated to aquatic organisms at harmful levels.
Biomagnification
Silicon or calcium do not have tendency to biomagnify (i.e. accumulate and enrich in the food chain),
Minor constituents and impurities
Depending on raw materials and purity of CaSi, products may contain also some metals > 0.1% (Fe, Al, Mn, Ti,) or non metals (C as carbides) recognised by the registration (ID card) or metals at < 0.1% level and not completely covered (recognised) by this CSA. Some of the < 0.1 % impurity metals are known to be bioaccumulative and may have effects relevant for the food chain and secondary poisoning.
Companies should have regular control over the levels of hazardous impurities and update the chemical safety assessment and risk management measures accordingly.
Aquatic bioaccumulation is an information requirementunder Annex IX:Bioaccumulation in aquatic species, preferably fish, (9.3.2.).CaSi is an inorganic alloy and testing of these alloys for bioaccumulation is not relevant, because sufficient information of bioaccumulation potential of this material and its constituents is already available.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.

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