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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

Additional physico-chemical information
Administrative data
- Endpoint:
- other: surface composition
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable, well-documented study report which meets basic scientific principles
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Analysis was performed by using x‐ray photoelectron spectroscopy (XPS) with a monochromatic Al x‐ray source (150 W) on areas approximately sized 700 x 300 μm. Wide spectra were run to detect elements present in the outermost surface oxide (information depth of a few nanometer) at five different surface area locations. Detailed high resolution spectra (20 eV pass energy) were acquired for the main compositional elements of each test item.
- GLP compliance:
- yes
Test material
- Reference substance name:
- Reaction mass of calcium disilicide and calcium silicide
- IUPAC Name:
- Reaction mass of calcium disilicide and calcium silicide
- Reference substance name:
- Reaction mass of calcium disilicide and calcium silicide
- EC Number:
- 915-037-6
- Molecular formula:
- CaSi; CaSi2; Ca2Si
- IUPAC Name:
- Reaction mass of calcium disilicide and calcium silicide
- Details on test material:
- - Test material identity in study report: ferrosilicocalcium alloy (CaSi) (EINECS n° 234-587-1, CAS n° 12013-55-7; EINECS n° 234-588-7, CAS n° 12013-56-8; EINECS n° --- --- -, CAS n° 12737-18-7). Test material identity given here (EINECS n° 915-037-6) includes these materials.
- Composition of test material, percentage of components: Si 61% (w/w), Ca 30% (w/w)
Constituent 1
Constituent 2
Results and discussion
- Results:
- The surface of CaSi is composed of silicon, calcium, iron and aluminium rich oxide phases. The thicness of the surface oxide layer is only few nanometers.
Applicant's summary and conclusion
- Conclusions:
- A thin nanometer thick surface oxide layer composed of silicon, calcium, iron and aluminium rich oxide phases is present on the surface of CaSi.
- Executive summary:
Surface composition analysis of CaSi was performed by using x‐ray photoelectron spectroscopy (XPS). The surface of CaSi is composed of silicon, calcium, iron and aluminium rich oxide phases. The thickness of the surface oxide layer is only few nanometres.
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