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EC number: 245-612-0 | CAS number: 23363-14-6
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 11 September 2017 to 02 November 2017
- 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)
- Version / remarks:
- 2012
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Version / remarks:
- 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- pycnometer method
- Key result
- Type:
- density
- Density:
- 1 680 kg/m³
- Temp.:
- 20 °C
- Key result
- Type:
- relative density
- Density:
- 1.68
- Temp.:
- 20 °C
- Conclusions:
- Under the conditions of this study the density of the test material has been determined to be 1.68 x 10³ kg/m³ at 20.0 ± 0.5 °C with a relative density of 1.68.
- Executive summary:
The density of the test material was investigated in accordance with the standardised guidelines OECD 109 and EU Method A.3, under GLP conditions.
The testing was performed using a pycnometer, duplicate determinations were performed to ensure a reproducibility of less than ± 20 kg/m³ was obtained.
In calibration, the reference cell volume and sample cell volume were within the defined tolerance (90.953 ± 1.0 cm³ and 149.225 ± 1.0 cm³ for the reference and sample cell volumes respectively) the gas comparison pycnometer was therefore considered acceptable for use.
Under the conditions of this study the density of the test material has been determined to be 1.68 x 10³ kg/m³ at 20.0 ± 0.5 °C with a relative density of 1.68.
Reference
CALIBRATION
Table 1: Pressure readings and the calculated volume for the reference and sample cells
Determination |
P1 (psig) |
P2 (psig) |
P3 (psig) |
P4 (psig) |
Reference Cell Volume (cm³) |
Sample Cell Volume (cm³) |
1 |
17.120 |
6.486 |
17.037 |
8.447 |
90.843 |
148.940 |
2 |
17.097 |
6.476 |
17.036 |
8.446 |
90.784 |
148.891 |
3 |
17.130 |
6.490 |
16.964 |
8.408 |
90.954 |
149.114 |
- Mean reference cell volume : 90.860 cm³ Mean sample cell volume : 148.981 cm³
- As the reference cell volume and sample cell volume were within the defined tolerance (90.953 ± 1.0 cm³ and 149.225 ± 1.0 cm³ for the reference and sample cell volumes respectively) the gas comparison pycnometer was therefore considered acceptable for use.
SAMPLE
Table 2: Pressure readings, calculated volumes and density values obtained for the test material
Determination |
Replicate |
P1(sample) (psig) |
P2(sample) (psig) |
Volume (cm³) |
Density (kg/m³) |
Mean Density (kg/m³) |
1 |
A |
17.013 |
7.273 |
27.3 |
1.68x10³ |
1.68x10³ |
B |
17.046 |
7.285 |
27.2 |
1.68x10³ |
||
C |
17.006 |
7.265 |
27.2 |
1.69x10³ |
||
2 |
A |
17.110 |
7.416 |
30.2 |
1.68x10³ |
1.68x10³ |
B |
17.042 |
7.387 |
30.2 |
1.68x10³ |
||
C |
17.504 |
7.586 |
30.2 |
1.68x10³ |
- Mean density: 1.68 x 10³ kg/m³
- Relative density : 1.68
- Temperature : 20.0 ± 0.5 °C
- Duplicate determinations were performed to ensure a reproducibility of less than ± 20 kg/m³ was obtained.
Description of key information
Under the conditions of this study the density of the test material has been determined to be 1.68 x 10³ kg/m³ at 20.0 ± 0.5 °C with a relative density of 1.68.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.68
Additional information
The density of the test material was investigated in accordance with the standardised guidelines OECD 109 and EU Method A.3, 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 testing was performed using a pycnometer, duplicate determinations were performed to ensure a reproducibility of less than ± 20 kg/m³ was obtained.
In calibration, the reference cell volume and sample cell volume were within the defined tolerance (90.953 ± 1.0 cm³ and 149.225 ± 1.0 cm³ for the reference and sample cell volumes respectively) the gas comparison pycnometer was therefore considered acceptable for use.
Under the conditions of this study the density of the test material has been determined to be 1.68 x 10³ kg/m³ at 20.0 ± 0.5 °C with a relative density of 1.68.
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