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Diss Factsheets
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EC number: 422-030-7 | CAS number: 91538-82-8
- 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
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Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 20.10.2005-21.02.2006
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- air comparison pycnometer (for solids)
- Key result
- Type:
- relative density
- Remarks:
- solid
- Density:
- 1.324 other: dimensionsless
- Temp.:
- 20 °C
- Key result
- Type:
- relative density
- Remarks:
- liquid
- Density:
- 1.22 other: dimensionsless
- Temp.:
- 20 °C
- Conclusions:
- The relative density (compared to water at 4 °C) of the liquid test item is 1.324
- Executive summary:
A study was performed in accordance with Commission Regulation (EC) No. 440/2008, method A.3 and OECD TG 109 by using the gas comparison pycnometer at 20.0°C. Two tests were performed and the density of the test item was determined. The relative density of the test item was determined to be 1.324.
Reference
Relative Density of Solids: Gas comparison pycnometer
Before the measurement the test item was filled into the test vessel and cooled down in a refrigerator for crystallization. Subsequently the test item was stored at ambient temperature (24.7 - 24.8 °C) in the gas comparison pycnometer under Helium atmosphere. The test item remained solid under these conditions, due to the fact that the melting point is > 30 °C.
Two test series with different weights were performed at ambient temperature (24.7 - 24.8 °C) with the solid test item.
Results of the two tests
Measurement |
Density ρPR/ g·cm |
1 |
1.3249 |
2 |
1.3240 |
Mean |
1.324 |
Mean density ρPRfor the two test series:1.324 g/cm3. The relative density of the test item at 20 °C (compared with water at 4 °C) was determined to be 1.324.
Relative Density for Liquids; Glass pycnometer
Before the measurement the test item was melted. The liquid test item was filled into the glass pycnometer and cooled down to 20 °C. The test item was tempered at this temperature before the measurement. The test item remained liquid under these conditions, due to the fact that the freezing point is < 4 °C. Two tests with different pycnometers were carried out at a temperature of 20 °C.
Results of the two tests
Measurement |
Density ρPR/ g·cm |
1 |
1.2226 |
2 |
1.2195 |
Mean |
1.221 |
The relative density (compared to water at 4 °C) of the liquid test item is: D420= D2020x 0.998 = 1.221 x 0.998 = 1.22
Description of key information
The relative density of the test item at 20 °C (compared with water at 4 °C) was determined to be 1.324.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.324
Additional information
A study was performed in accordance with Commission Regulation (EC) No. 440/2008, method A.3 and OECD TG 109 by using the gas comparison pycnometer at 20 °C. Two tests were performed and the density of the test item was determined. The relative density of the test item (calculated from the mean density of the test item) was determined to be D420= 1.324.
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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