Registration Dossier
Registration Dossier
Diss Factsheets
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EC number: 224-221-9 | CAS number: 4253-34-3
- 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

Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- density, other
- Type of information:
- (Q)SAR
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
- Justification for type of information:
- See attached QMRF/QPRF
- Principles of method if other than guideline:
- The result was obtained using an appropriate QSAR method (see attached QMRF and QPRF for details).
The model for density has been developed for, and applies specifically to, organosilicon compounds. It is a multiple linear regression based model with descriptors representing counts of different atoms and groups that may be present in the molecule. - Key result
- Type:
- density
- Density:
- 1.04 g/cm³
- Temp.:
- 20 °C
- Conclusions:
- A density value of 1.04 g/cm3 at 20°C has been determined for the substance using an appropriate estimation method. The result is considered reliable.
- Endpoint:
- relative density
- Type of information:
- other: Data obtained from a secondary source
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Principles of method if other than guideline:
- Information on test guideline not stated
- GLP compliance:
- not specified
- Type of method:
- other: Densimeter
- Key result
- Type:
- relative density
- Density:
- 1.17 other: Unitless
- Temp.:
- 20 °C
- Conclusions:
- A relative density value of 1.17 at 20°C was reported for the substance in a secondary source which has been subject to peer review and in which the original sources are traceable. The result is considered reliable.
Referenceopen allclose all
Description of key information
Relative density: 1.17 at 20°C
Key value for chemical safety assessment
- Relative density at 20C:
- 1.17
Additional information
A relative density value of 1.17 at 20°C was reported for the substance in a secondary source which has been subject to peer review and in which the original sources are traceable. Also, a density value of 1.04 g/cm3 at 20°C was determined for the substance using a validated QSAR estimation method. The two results are in reasonable agreement and are used as weight of evidence.
In another source to which reliability could not be assigned, the substance was reported to have a density value of approximately 1.168 g/cm3 and specific gravity of 1.16. No information on temperature was stated.
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