Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 03 February 2021 to 22 March 2021
- Reliability:
- 1 (reliable without restriction)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Version / remarks:
- 2012
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Version / remarks:
- 2008
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- air comparison pycnometer (for solids)
- Key result
- Type:
- relative density
- Density:
- 1.49 other: unitless
- Temp.:
- 20.2 °C
- Type:
- density
- Density:
- 1 490 kg/m³
- Temp.:
- 20.2 °C
- Conclusions:
- The density of the test item has been determined to be 1490 kg/m3 at 20.2 ± 0.5 °C; relative density: 1.49.
- Executive summary:
The density of the test item has been determined to be 1.49 x 103 kg/m3 at 20.2 ± 0.5 °C; relative density: 1.49, using a gas comparison pycnometer, designed to be compatible with Method A.3 Relative Density of Commission Regulation (EC) No. 440/2008 of 30 May 2008 and Method 109 of the OECD Guidelines for Testing of Chemicals, 02 October 2012.
Reference
Calibration
The pressure readings and the calculated volume for the reference and sample cells are shown in the following table:
Table 2
Determination | P1 (psig) | P2 (psig) | P3 (psig) | P4 (psig) | Reference Cell Volume (cm3) | Sample Cell Volume (cm3) |
1 | 17.069 | 6.456 | 17.038 | 8.439 | 90.503 | 148.778 |
2 | 17.065 | 6.460 | 17.006 | 8.427 | 90.697 | 148.892 |
3 | 17.067 | 6.463 | 17.046 | 8.447 | 90.824 | 149.018 |
Mean reference cell volume: 90.675 cm3
Mean sample cell volume: 148.896 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
The pressure readings, calculated volumes and density values obtained for the test item are shown in the following table:
Table 3
Determination | Replicate | P1(sample) | P2(sample) | Volume (cm3) | Density | Mean Density |
1 | A | 17.015 | 6.886 | 15.517 | 1.52 x 103 | 1.50 x 103 |
B | 17.028 | 6.903 | 15.898 | 1.49 x 103 | ||
C | 17.012 | 6.895 | 15.849 | 1.49 x 103 | ||
2 | A | 17.032 | 6.959 | 17.646 | 1.49 x 103 | 1.49 x 103 |
B | 17.006 | 6.950 | 17.698 | 1.49 x 103 | ||
C | 17.009 | 6.950 | 17.659 | 1.49 x 103 |
Duplicate determinations were performed which gave a reproducibility of less than ± 20 kg/m3.
Description of key information
Relative density: 1.49; Walker, J. A., (2021)
Key value for chemical safety assessment
- Relative density at 20C:
- 1.49
Additional information
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