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EC number: 230-386-8 | CAS number: 7085-19-0
- 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:
- density, other
- Remarks:
- density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 15 April 1999 to 23 June 1999
- 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
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- pycnometer method
- Key result
- Type:
- density
- Density:
- 1.37 g/cm³
- Temp.:
- 23 °C
- Conclusions:
- Under the conditions of this study, the density of the test material was found to be 1.37 g/cm^3 at 23 °C.
- Executive summary:
The density of the test material was investigated in accordance with the standardised guideline OECD 109, under GLP conditions.
A clean, dry pycnometer was accurately weighed (w1) then filled to the limits of its capacity with 0.1 % v/v Tween 80. It was then carefully stoppered without trapping air, dried and re-weighed (w2). To the clean, dry and accurately weighed pycnometer, test material (approximately 1 g) was added. The pycnometer was re-weighed (w3) and then the test material covered with displacement liquid. After vigorous shaking of the stoppered pycnometer to suspend the test material, the pycnometer was filled with displacement liquid, stoppered and weighed as before (w4). Two tests were performed concurrently using separate pycnometers.
Under the conditions of this study, the density of the test material was found to be 1.37 g/cm^3 at 23 °C.
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 24 January 1991 to 29 April 1991
- 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:
- yes (incl. QA statement)
- Type of method:
- pycnometer method
- Type:
- relative density
- Density:
- 1.302 other: dimensionless
- Temp.:
- 20 °C
- Conclusions:
- Under the conditions of this study, the relative density of the test material at 20 °C was determined to be 1.302.
- Executive summary:
The relative density of the test material was investigated in accordance with the standardised guidelines OECD 109 and EU Method A3, under GLP conditions.
The determination was performed using a pycnometer at 20 °C. Distilled water was used as the displacing liquid. A preliminary determination of the solubility of the test material in distilled water was performed, the solubility of <0.1 % (w/v) was considered to be insignificant with respect to the density determination. The density of the test material was calculated to be relative to the density of water at 4 °C (0.998 g/mL).
Under the conditions of this study, the relative density of the test material at 20 °C was determined to be 1.302.
Referenceopen allclose all
Results of the Study
Parameter |
Determination 1 |
Determination 2 |
w1 |
13.60591 |
14.88333 |
w2 |
23.90942 |
24.33888 |
w3 |
14.59071 |
15.73862 |
w4 |
24.17690 |
24.57151 |
W1 |
10.30351 |
9.45555 |
W2 |
0.98480 |
0.85529 |
W3 |
9.58619 |
8.83289 |
W4 |
0.71732 |
0.62266 |
Vs |
0.71876 |
0.62391 |
D |
1.370 |
1.371 |
Mean D |
1.37 |
Results
Parameter |
Determination 1 |
Determination 2 |
w1 |
13.84615 |
15.39910 |
w2 |
15.64675 |
17.88037 |
w3 |
24.65433 |
26.56124 |
w4 |
24.23652 |
25.97717 |
W1 |
10.39037 |
10.57807 |
W2 |
1.80060 |
2.48127 |
W3 |
9.00758 |
8.68087 |
W4 |
1.38279 |
1.89720 |
Vs |
1.38556 |
1.90100 |
D(T/4) |
1.29955 (1.300) |
1.30524 (1.305) |
Mean D(T/4) |
1.30240 (1.302) |
Thus the relative density of the test material was determined to be 1.302 (mean of 1.300 and 1.305) at 20 °C.
Description of key information
Key Study: Comb (2000)
Under the conditions of this study, the density of the test material was found to be 1.37 g/cm^3 at 23 °C.
Supporting Study: Colwyn (1993)
Under the conditions of this study, the relative density of the test material at 20 °C was determined to be 1.302.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.37
Additional information
Key Study: Comb (2000)
The density of the test material was investigated in accordance with the standardised guideline OECD 109, under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).
A clean, dry pycnometer was accurately weighed (w1) then filled to the limits of its capacity with 0.1 % v/v Tween 80. It was then carefully stoppered without trapping air, dried and re-weighed (w2). To the clean, dry and accurately weighed pycnometer, test material (approximately 1 g) was added. The pycnometer was re-weighed (w3) and then the test material covered with displacement liquid. After vigorous shaking of the stoppered pycnometer to suspend the test material, the pycnometer was filled with displacement liquid, stoppered and weighed as before (w4). Two tests were performed concurrently using separate pycnometers.
Under the conditions of this study, the density of the test material was found to be 1.37 g/cm^3 at 23 °C.
Supporting Study: Colwyn (1993)
The relative density of the test material was investigated in accordance with the standardised guidelines OECD 109 and EU Method A3, under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).
The determination was performed using a pycnometer at 20 °C. Distilled water was used as the displacing liquid. A preliminary determination of the solubility of the test material in distilled water was performed, the solubility of <0.1 % (w/v) was considered to be insignificant with respect to the density determination. The density of the test material was calculated to be relative to the density of water at 4 °C (0.998 g/mL).
Under the conditions of this study, the relative density of the test material at 20 °C was determined to be 1.302.
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