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EC number: 214-787-5 | CAS number: 1194-65-6
- 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:
- 28 June 2001 to 3 October 2001
- 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
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- pycnometer method
- Key result
- Type:
- relative density
- Density:
- 1.55 other: dimensionless
- Temp.:
- 20 °C
- Conclusions:
- Under the conditions of the test, the relative density of the test material was determined to be 1.55 using the pycnometer method.
- Executive summary:
In a GLP compliant density study conducted in accordance with standardised guideline EU Method A.3, the density of the test material was determined using the pycnometer method. Under the conditions of the test, the relative density of the test material was determined to be 1.55.
Reference
Table 1: Results
Sample 1 | Sample 2 | Sample 3 | |||||||
P1 (psi) | P2 (psi) | VSAMP (cm3) | P1 (psi) | P2 (psi) | VSAMP (cm3) | P1 (psi) | P2 (psi) | VSAMP (cm3) | |
1 | 19.805 | 10.983 | 0.728 | 19.750 | 10.911 | 0.794 | 19.859 | 11.055 | 0.661 |
2 | 19.755 | 10.958 | 0.755 | 19.738 | 10.903 | 0.796 | 19.915 | 11.081 | 0.669 |
3 | 19.800 | 10.982 | 0.725 | 19.735 | 10.902 | 0.795 | 19.991 | 11.122 | 0.671 |
Average VSAMP (cm3) | 0.725 | 0.795 | 0.667 | ||||||
SD | 0.003 | 0.001 | 0.005 | ||||||
%RSD | 0.411 | 0.137 | 0.819 | ||||||
WTSAMP (g) | 1.125 | 1.235 | 1.037 | ||||||
Absolute density (g/cm3) | 1.552 | 1.554 | 1.555 | ||||||
Average absolute density (g/cm3) | 1.55 | ||||||||
SD | 0.001 | ||||||||
%RSD | 0.09 | ||||||||
Relative density D204 | 1.55 |
VSAMP = VCELL - (VEXP/((P1/P2)-1))
Absolute density = WTSAMP/VSAMP
Relative density = Absolute density / 1.000 g/cm3
where:
P1 and P2 are pressure measurements taken by the pycnometer
VCELL and VEXP are cell constants equal to 8.520 cm3 and 6.259 cm3
VSAMP is the skeletal volume of the sample in cm3
WTSAMP is the sample weight
Calculations
VSAMP = 8.52 - (6.259/((19.800/10.982)-1)) = 0.725 cm3
Density = 1.125 / 0.725 = 1.552 g/cm3
Relative density = 1.553 / 1.000 = 1.55
Description of key information
The relative density of the test material was determined to be 1.55 according to a study performed in line with EU Method A.3.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.55
Additional information
The key study (Chee-Chue, 2001) was performed in line with GLP and standardised guidelines with a sufficient level of detail to assess the quality of the study. The study was performed to a good standard and was assigned a reliability score of 1 using the principle for assessing data quality as set out in Klimisch (1997).
The supporting study (Berkel et al., 1987) was not performed in line with GLP and contained insufficient detail to assess the quality of the study. The study was assigned a reliability score of 4 using the principle for assessing data quality as set out in Klimisch (1997).
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