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Diss Factsheets
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EC number: 849-975-1 | 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:
- 22 August 2007 to 14 September 2007
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Version / remarks:
- 1992
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- air comparison pycnometer (for solids)
- Key result
- Type:
- density
- Density:
- 1.274 g/cm³
- Temp.:
- 20 °C
- Key result
- Type:
- relative density
- Density:
- 1.274 other: Dimensionless
- Temp.:
- 20 °C
- Conclusions:
- Under the conditions of the study the density of the test material was determined to be 1.274 g/cm³ at 20 °C ± 0.5 °C.
The relative density of the test material was determined to be 1.274. - Executive summary:
The relative density of the test material was assessed according to OECD Test Guideline 109 and EU Method A.3. in compliance with GLP using a gas comparison pycnometer.
The test material was dried in a desiccator over silica gel for about 22 days before the first measurement and about 23 days for the second measurement before use.
During the study, a reference cell of a defined volume (Vref) was pressurised with helium to a pressure of not more than 20 psi (137.9 kPa) and the pressure was read. Subsequently, the volume of the sample cell (being filled with helium at ambient temperature) was added to the pressure system, resulting in a lower pressure, which was also read.
The procedure was repeated until reproducible results were obtained (repeatability of < ± 0.02 g/cm³). The sample cell containing the test material was reweighed to determine the mass of the tested material.
The test was performed at a temperature of 19.75 °C ± 0.25 °C.
A calibration procedure was performed in triplicate.
The determination of the relative density of the test material was performed with two independent test material samples each measured in triplicate.
Under the conditions of the study the density of the test material was determined to be 1.274 g/cm³ at 20 °C ± 0.5 °C.
The relative density of the test material was determined to be 1.274.
Reference
The test was performed at a temperature of 19.75 °C ± 0.25 °C.
The calibration procedure was performed in triplicate.
The determination of the relative density of the test material was performed with two independent test material samples each measured in triplicate.
The density of the test material was determined to be 1.274 g/cm³ (= 1.274 · 10³ kg/m³) at 20 °C ± 0.5 °C using a gas comparison pycnometer.
The relative density of the test material was determined to be 1.274.
Results of the Calibration
Calibration volume (Vcal): 56.559 cm³
Gas: Helium
Measurement |
P1 [psi] |
P2 [psi] |
P3 [psi] |
P4 [psi] |
Vref [cm³] |
Vcell [cm³] |
1 |
17.565 |
5.380 |
17.389 |
7.118 |
68.814 |
155.855 |
2 |
17.216 |
5.269 |
17.443 |
7.138 |
68.662 |
155.685 |
3 |
17.399 |
5.325 |
17.613 |
7.208 |
68.649 |
155.657 |
Mean |
|
68.708 |
155.732 |
Determination of the Density
Sample No. |
Sample weight [g] |
Measurement |
P1 sample [psi] |
P2 sample [psi] |
V sample [cm³] |
Density [g/cm³] |
1 |
12.993 |
1 |
15.431 |
4.949 |
10.207 |
1.273 |
2 |
15.466 |
4.960 |
10.198 |
1.274 |
||
3 |
15.483 |
4.963 |
10.092 |
1.287 |
||
2 |
14.687 |
1 |
15.579 |
5.029 |
11.593 |
1.267 |
2 |
15.474 |
4.995 |
11.589 |
1.267 |
||
3 |
15.658 |
5.053 |
11.530 |
1.274 |
||
Mean |
1.274 |
|||||
Standard deviation ± [g/cm³] |
0.007 |
Description of key information
Under the conditions of the study the density of the test material was determined to be 1.274 g/cm³ at 20 °C ± 0.5 °C.
The relative density of the test material was determined to be 1.274.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.274
Additional information
The relative density of the test material was assessed according to OECD Test Guideline 109 and EU Method A.3. in compliance with GLP using a gas comparison pycnometer. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).
The test material was dried in a desiccator over silica gel for about 22 days before the first measurement and about 23 days for the second measurement before use.
During the study, a reference cell of a defined volume (Vref) was pressurised with helium to a pressure of not more than 20 psi (137.9 kPa) and the pressure was read. Subsequently, the volume of the sample cell (being filled with helium at ambient temperature) was added to the pressure system, resulting in a lower pressure, which was also read.
The procedure was repeated until reproducible results were obtained (repeatability of < ± 0.02 g/cm³). The sample cell containing the test material was reweighed to determine the mass of the tested material.
The test was performed at a temperature of 19.75 °C ± 0.25 °C.
A calibration procedure was performed in triplicate.
The determination of the relative density of the test material was performed with two independent test material samples each measured in triplicate.
Under the conditions of the study the density of the test material was determined to be 1.274 g/cm³ at 20 °C ± 0.5 °C.
The relative density of the test material was determined to be 1.274.
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