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EC number: 843-143-1 | CAS number: 709647-81-4
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 18 March 2020 to 14 July 2020
- 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)
- Remarks:
- Date of Inspection: 21 August 2018; Date of Issue: 19 November 2018
- Type of method:
- air comparison pycnometer (for solids)
- Specific details on test material used for the study:
- STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: room temperature, in the dark - Type:
- density
- Density:
- 1 340 kg/m³
- Temp.:
- 20 °C
- Key result
- Type:
- relative density
- Density:
- 1.34
- Temp.:
- 20 °C
- Conclusions:
- The density of the test item has been determined to be 1340 kg/m3 at 20.0 ± 0.5°C and the relative density has been determined to be 1.34.
- Executive summary:
The density and relative density were determined to be 1.34 x 10 kg/m3 and 1.34, respectively, at 20.0 ± 0.5 °C, 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 1: Vessel and Test Item Measurements
| Determination | P1 (psig) | P2 (psig) | P3 (psig) | P4 (psig) | Reference cell volume (cm3) | Sample cell volume (cm3) |
| 1 | 17.227 | 6.521 | 17.504 | 8.673 | 90.704 | 148.915 |
| 2 | 17.368 | 6.557 | 17.280 | 8.559 | 90.962 | 149.242 |
| 3 | 17.236 | 6.527 | 17.218 | 8.531 | 90.867 | 149.088 |
Mean reference cell volume: 90.844 cm3
Mean sample cell volume: 149.082 cm3
As the reference cell volume and sample cell volume were within the defined tolerances (90.953 ± 1.0 cm3 and 149.225 ± 1.0 cm3 for the reference and sample cell volumes respectively) the gas comparison pycnometer was considered acceptable for use.
Sample
The pressure readings obtained for the vessel and vessel containing test item are shown in the following table:
Table 2
Detn | Rep | Vessel | Vessel and Test Item | ||||
P1 (sample)(psig) | P2 (sample)(psig) | Volume (cm3) | P3 (sample)(psig) | P4 (sample)(psig) | Volume (cm3) | ||
1 | A | 17.129 | 6.912 | 14.8 | 17.128 | 7.751 | 39.2 |
B | 17.230 | 6.951 | 14.7 | 17.178 | 7.772 | 39.1 | |
C | 17.474 | 7.046 | 14.6 | 17.187 | 7.774 | 39.1 | |
2 | A | 17.129 | 6.912 | 14.8 | 17.177 | 7.778 | 39.3 |
B | 17.230 | 6.951 | 14.7 | 17.274 | 7.819 | 39.2 | |
C | 17.474 | 7.046 | 14.6 | 17.106 | 7.743 | 39.2 | |
The mass of the vessel, vessel and test item, and the calculation mass of test item are shown in the following table.
Table 3
| Determination | Mass of Vessel (g) | Mass of Vessel and Test Item (g) | Mass of Test Item (g) |
| 1 | 32.6352 | 65.3918 | 32.7566 |
| 2 | 32.6352 | 65.3598 | 32.7246 |
The calculated volumes and density obtained are shown in the following table:
Table 4
| Determination | Mean Volume of Vessel (cm3) | Mean Volume of Vessel and Test Item (cm3) | Mean Volume of Test Item (cm3) | Density (kg/m3) |
| 1 | 14.7 | 39.1 | 24.4 | 1.34 x 103 |
| 2 | 14.7 | 39.3 | 24.5 | 1.33 x 103 |
Mean density: 1.34 x 103 x kg/m3
Relative density: 1.34
Ambient temperature: 21.0 ± 0.5°C
Description of key information
1.34; OECD 109; Fox, J. M. (2020)
Key value for chemical safety assessment
- Relative density at 20C:
- 1.34
Additional information
Mean density: 1340 kg/m3
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