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Diss Factsheets
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EC number: 944-232-9 | 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
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- April 09, 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- air comparison pycnometer (for solids)
- Key result
- Type:
- relative density
- Density:
- 1.54 g/cm³
- Temp.:
- 20 °C
- Key result
- Type:
- relative density
- Density:
- 1.54
- Temp.:
- 20 °C
- Conclusions:
- The relative density of the test item at ambient temperature (compared to water at 4 °C) was determined to be: D4R = 1.54 (20.0°C).
- Executive summary:
The density of a solid in any form can be measured at ambient temperature (R) with the gas comparison pycnometer. A constant temperature of the environment of the apparatus is regulated by an air-conditioning unit and controlled with a thermometer. The apparatus with the test item is swept 10 times with 19.5 psi Helium. Thereafter, the valve to the expansion chamber (volume = Vr) is opened and a certain amount of gas (Helium, purity min. 99.99 %) is expanded from the measurement chamber (volume = Vc) containing the test item to the expansion chamber. From the pressure drop from p1to p2the volume of the test item Vswas calculated.
Study was performed in accordance with the following guidelines:
EU Method A.3 (Relative Density)
OECD Guideline 109 (Density of Liquids and Solids)
A measurement chamber with a volume of Vc= 7.8961 cm3and an expansion chamber with a volume of Vr= 6.0848 cm3were used.
Two test series with different weights were performed at ambient temperature (20.0 °C).
Mean density rPRfor the two test series: 1.539 g/cm3
Relative density (compared to water at 4°C) D4R: 1.54
Reference
Results:
A measurement chamber with a volume of Vc= 7.8961 cm3and an expansion chamber with a volume of Vr= 6.0848 cm3were used.
Two test series with different weights were performed at ambient temperature (20.0 °C). For results see Table1 and Table2.
Table1: Results of the 1sttest series
Weight: 2.0171 g |
p1/ psi |
p2/ psi |
Volume / cm3 |
DensityrPR/ g·cm-3 |
1. measurement |
19.557 |
10.171 |
1.3023 |
1.5488 |
2. measurement |
19.521 |
10.152 |
1.3027 |
1.5484 |
3. measurement |
19.509 |
10.146 |
1.3024 |
1.5488 |
Mean |
|
|
1.303 |
1.549 |
Table2: Results of the 2ndtest series
Weight: 1.9624 g |
p1/ psi |
p2/ psi |
Volume / cm3 |
DensityrPR/ g·cm-3 |
1. measurement |
19.539 |
10.174 |
1.2856 |
1.5265 |
2. measurement |
19.520 |
10.166 |
1.2830 |
1.5295 |
3. measurement |
19.613 |
10.217 |
1.2796 |
1.5337 |
Mean |
|
|
1.283 |
1.530 |
Mean densityrPRfor the two test series: 1.539 g/cm3
Relative density (compared to water at 4 °C) D4R: 1.54
Description of key information
Key value determined in a laboratory study with the gas comparison pycnometer performed in accordance with OECD Guideline 109 and EU Method A.3.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.54
Additional information
The density of a solid in any form can be measured at ambient temperature (R) with the gas comparison pycnometer.
A measurement chamber with a volume of Vc= 7.8961 cm3and an expansion chamber with a volume of Vr= 6.0848 cm3 were used.
Two test series with different weights were performed at ambient temperature (20.0 °C).
Mean density rPRfor the two test series: 1.539 g/cm3
Relative density (compared to water at 4°C) D4R: 1.54
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