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EC number: 273-761-1 | CAS number: 69012-64-2 Amorphous silicon dioxide particles from the volatilization and vaporization of furnace feed materials in the manufacture of ferrosilicon and silicon.
- 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
Identification
- Display Name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
Type of Substance
- Composition:
- mono-constituent substance
- Origin:
- inorganic
Substance Identifiers open all close all
Silica fume, microsilica, condensed SiO2 (silica) fume, amorphous silica, silicon dioxide powder, silica powder, volatilized SiO2, thermally generated silica fume (TGSF), microfume
(No other type specified)
Compositions
Boundary Composition(s) open all close all
Nanoform
Nanoform |
- State Form:
- solid: nanoform
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
Characterisation of nanoforms
Particle size distribution and range
Particle size distribution and range
- Range of length:
- ca. 150 nm
- Range of lateral dimension 1:
- ca. 150 nm
- Range of lateral dimension 2:
- ca. 150 nm
Specific surface area
- Range of specific surface area:
- ca. 20 m²/g
Surface functionalisation / treatment
- Surface treatment applied:
- no
Legal Entity Composition(s) open all close all
Nanoform
Nanoform |
- State Form:
- solid: nanoform
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
Characterisation of nanoforms
Particle size distribution and range
Particle size distribution and range
- Range of length:
- ca. 150 nm
- Range of lateral dimension 1:
- ca. 150 nm
- Range of lateral dimension 2:
- ca. 150 nm
Specific surface area
- Range of specific surface area:
- ca. 20 m²/g
Surface functionalisation / treatment
- Surface treatment applied:
- no
Nanoform
Nanoform |
- State Form:
- solid: nanoform
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
Characterisation of nanoforms
- Type of information reported:
- single nanoform
- This nanoform is covered by a registration:
- yes
- Name of nanoform:
- Silica-fume_spherical-amorphous-OR
Shape
Shape description
- Shape category:
- spheroidal
- Shape:
- spherical
- Pure shape:
- yes
- Typical composition:
- ca. 100 %
- Range:
- ca. 100 %
Particle size distribution and range
Particle size distribution and range
- Shape category:
- spheroidal
Percentileopen allclose all
- Percentile:
- D90
- Typical value:
- ca. 87.2 nm
- Range:
- >= 80 - <= 155 nm
- Percentile:
- D50
- Typical value:
- ca. 25.8 nm
- Range:
- >= 20 - <= 47 nm
- Percentile:
- D10
- Typical value:
- ca. 11.9 nm
- Range:
- >= 9 - <= 21 nm
- Fraction of constituent particles in the size range 1-100 nm:
- >= 82 - <= 92 %
Crystallinity
Structures
- Structure:
- amorphous
- Pure structure:
- yes
- Typical composition:
- ca. 100 %
- Range:
- ca. 100 %
- Crystal system:
- not applicable
Specific surface area
- Typical specific surface area:
- ca. 12 m²/g
- Range of specific surface area:
- >= 10.6 - <= 14.2 m²/g
- Skeletal density:
- ca. 2.65 g/cm³
Surface functionalisation / treatment
- Surface treatment applied:
- no
Nanoform
Nanoform |
- State Form:
- solid: nanoform
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
Characterisation of nanoforms
- Type of information reported:
- single nanoform
- This nanoform is covered by a registration:
- yes
- Name of nanoform:
- Silica-fume_spherical-amorphous
Shape
Shape description
- Shape category:
- spheroidal
- Shape:
- spherical
- Pure shape:
- yes
- Typical composition:
- ca. 100 %
- Range:
- ca. 100 %
Particle size distribution and range
Particle size distribution and range
- Shape category:
- spheroidal
Percentileopen allclose all
- Percentile:
- D90
- Typical value:
- ca. 87.2 nm
- Range:
- >= 80 - <= 155 nm
- Percentile:
- D50
- Typical value:
- ca. 25.8 nm
- Range:
- >= 20 - <= 47 nm
- Percentile:
- D10
- Typical value:
- ca. 11.9 nm
- Range:
- >= 9 - <= 21 nm
- Fraction of constituent particles in the size range 1-100 nm:
- >= 82 - <= 92 %
Crystallinity
Structures
- Structure:
- amorphous
- Pure structure:
- yes
- Typical composition:
- ca. 100 %
- Range:
- ca. 100 %
- Crystal system:
- not applicable
Specific surface area
- Typical specific surface area:
- ca. 12 m²/g
- Range of specific surface area:
- >= 10.6 - <= 14.2 m²/g
- Skeletal density:
- ca. 2.65 g/cm³
Surface functionalisation / treatment
- Surface treatment applied:
- no
- State Form:
- solid: particulate/powder
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
- State Form:
- solid: particulate/powder
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
- State Form:
- solid: particulate/powder
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
- State Form:
- solid: particulate/powder
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
- State Form:
- solid: particulate/powder
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
- State Form:
- solid: bulk
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
- State Form:
- solid: particulate/powder
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
- State Form:
- solid: particulate/powder
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
- State Form:
- solid: particulate/powder
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
- State Form:
- solid: bulk
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione
Constituent 1
- Reference substance name:
- Fumes, silica
- EC Number:
- 273-761-1
- EC Name:
- Fumes, silica
- CAS Number:
- 69012-64-2
- Molecular formula:
- SiO2
- IUPAC Name:
- silanedione