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EC number: 231-545-4 | CAS number: 7631-86-9
- 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
Solubility in organic solvents / fat solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- solubility in organic solvents / fat solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 03.11.2017 - 10.11.2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Guideline 105 resp. EU A.6
- Deviations:
- yes
- Remarks:
- the pH value in ethanol solutions was not determined
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- Designation in Test Facility: 17061303G
Date of Receipt: 13. Jun. 2017
Condition at Receipt: room temperature, in proper conditions
Name: Sylodent VP 5
Batch no.: 1503257003
Appearance: white powder
Composition: >99.8 % SiO2
CAS No.: 7631-86-9
EINECS-No.: 231-545-4
Molecular formula: SiO2
Molecular weight: 60.08 g/mol
Purity: >99.8 %
Homogeneity: homogeneous
Production date: 18. Jan. 2016
Expiry date: Aug. 2018
Storage: 20 ± 5 °C - Key result
- Medium:
- ethanol
- Solubility:
- < 0.49 mg/L
- Temp.:
- 20 °C
- Details on results:
- The concentration of the test item Sylodent VP 5 in ethanol using ICP-OES was calculated based on the LOQ of Silicon (227 μg/L) and the Silicon content in the test item as:
< 0.49 mg/L at 20.0 ± 0.5 °C - Conclusions:
- The concentration of the test item Sylodent VP 5 in ethanol using ICP-OES was calculated based on the LOQ of Silicon (227 μg/L) and the Silicon content in the test item as:
< 0.49 mg/L at 20.0 ± 0.5 °C - Executive summary:
The solubility of the test item Sylodent VP 5 in ethanol was determined by measurement of the Silicon concentration in the filtrated test solutions using two different methods, ICPOES and photometry.
The preliminary test which is described in the guideline was not performed. After consultation with the sponsor the flask method was used.
In the main test, 50 g/L test item in water were used for the test. Six individual flasks (flasks 1A - 1C and 2 – 4) were prepared. Five vessels (blank, flasks 1C (for the sampling point 72 h) and 2 – 4) were set onto the shaking apparatus immediately. After 24 ± 2 hours, flask 1B (for the sampling point 48 h) and after further 24 ± 2 hours, flask 1A (for the
sampling point 24 h) were set on the shaker and all flasks were shaken for further 24 ± 2 hours at room temperature (20.0 ± 0.5 °C). Then, flasks 1A - 1C were taken from the shaker, samples were taken, membrane filtrated and analysed for Silicon via ICP-OES on day 3 (flasks 1A, 1B, 1C). As the measured value lay below the LOQ of Si (< 227 μg/L Si) the test was prolonged and the flasks 1A – 1C were measured getting the values for days 4 – 7. The test was finished on day 7 as the measured value lay below the LOQ, too.
Therefore, on the same day 7, flasks 2 – 4 were sampled and analysed for Silicon in the same fashion.
No Tyndall effect (i.e. a laser beam was not scattered when transmitted through the liquid) could be observed indicating that no colloidal dispersed particles were present.
The concentration of the test item Sylodent VP 5 using photometry was calculated based on the LOQ of Silicon (500 μg/L) and the Silicon content in the test item as < 1.07 mg/L.
The concentration of the test item Sylodent VP 5 in ethanol using ICP-OES was calculated based on the LOQ of Silicon (227 μg/L) and the Silicon content in the test item as:
< 0.49 mg/L at 20.0 ± 0.5 °C
< 0.49 * 10-3 kg/m3 (SI units).
- Endpoint:
- solubility in organic solvents / fat solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 03.11.2017 - 10.11.2017
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Guideline 105 resp. EU A.6
- Deviations:
- yes
- Remarks:
- the pH value in ethanol solutions was not determined
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- Designation in Test Facility: 17061303G
Date of Receipt: 13. Jun. 2017
Condition at Receipt: room temperature, in proper conditions
Name: Sylodent VP 5
Batch no.: 1503257003
Appearance: white powder
Composition: >99.8 % SiO2
CAS No.: 7631-86-9
EINECS-No.: 231-545-4
Molecular formula: SiO2
Molecular weight: 60.08 g/mol
Purity: >99.8 %
Homogeneity: homogeneous
Production date: 18. Jan. 2016
Expiry date: Aug. 2018
Storage: 20 ± 5 °C - Key result
- Medium:
- ethanol
- Solubility:
- < 0.49 mg/L
- Temp.:
- 20 °C
- Details on results:
- The concentration of the test item Sylodent VP 5 in ethanol using ICP-OES was calculated based on the LOQ of Silicon (227 μg/L) and the Silicon content in the test item as:
< 0.49 mg/L at 20.0 ± 0.5 °C - Conclusions:
- The concentration of the test item Sylodent VP 5 in ethanol using ICP-OES was calculated based on the LOQ of Silicon (227 μg/L) and the Silicon content in the test item as:
< 0.49 mg/L at 20.0 ± 0.5 °C - Executive summary:
The solubility of the test item Sylodent VP 5 in ethanol was determined by measurement of the Silicon concentration in the filtrated test solutions using two different methods, ICPOES and photometry.
The preliminary test which is described in the guideline was not performed. After consultation with the sponsor the flask method was used.
In the main test, 50 g/L test item in water were used for the test. Six individual flasks (flasks 1A - 1C and 2 – 4) were prepared. Five vessels (blank, flasks 1C (for the sampling point 72 h) and 2 – 4) were set onto the shaking apparatus immediately. After 24 ± 2 hours, flask 1B (for the sampling point 48 h) and after further 24 ± 2 hours, flask 1A (for the
sampling point 24 h) were set on the shaker and all flasks were shaken for further 24 ± 2 hours at room temperature (20.0 ± 0.5 °C). Then, flasks 1A - 1C were taken from the shaker, samples were taken, membrane filtrated and analysed for Silicon via ICP-OES on day 3 (flasks 1A, 1B, 1C). As the measured value lay below the LOQ of Si (< 227 μg/L Si) the test was prolonged and the flasks 1A – 1C were measured getting the values for days 4 – 7. The test was finished on day 7 as the measured value lay below the LOQ, too.
Therefore, on the same day 7, flasks 2 – 4 were sampled and analysed for Silicon in the same fashion.
No Tyndall effect (i.e. a laser beam was not scattered when transmitted through the liquid) could be observed indicating that no colloidal dispersed particles were present.
The concentration of the test item Sylodent VP 5 using photometry was calculated based on the LOQ of Silicon (500 μg/L) and the Silicon content in the test item as < 1.07 mg/L.
The concentration of the test item Sylodent VP 5 in ethanol using ICP-OES was calculated based on the LOQ of Silicon (227 μg/L) and the Silicon content in the test item as:
< 0.49 mg/L at 20.0 ± 0.5 °C
< 0.49 * 10-3 kg/m3 (SI units).
Referenceopen allclose all
< 0.49 mg/L at 20.0 ± 0.5 °C
< 0.49 * 10-3 kg/m3 (SI units).
< 0.49 mg/L at 20.0 ± 0.5 °C
< 0.49 * 10-3 kg/m3 (SI units).
Description of key information
Key value for chemical safety assessment
Additional information
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.
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