Registration Dossier
Registration Dossier
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EC number: 276-123-0 | CAS number: 71873-46-6
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- December 12th, 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
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- air comparison pycnometer (for solids)
- Type:
- relative density
- Density:
- 1.201
- Temp.:
- 20 °C
- Remarks on result:
- other: mean value
- Conclusions:
- Relative density: 1.201 at 20 °C
- Executive summary:
The density of the test item was determined in accordance with OPPTS 830.7300 and OECD guideline 109.
The density was determined with a calibrated gas comparison pycnometer at a temperature of 20 ± 0.01 °C. The volume of the sample chamber (24.9 cm³) as well as the volume of the reference chamber (21.3 cm³) were exactly known. The free volume of the sample chamber into which the gas was expanded can be calculated by the ideal gas law. With the free gas volume of the sample chamber, the volume of the test item in the sample chamber could be calculated by subtracting the free gas volume from the total chamber volume. By measuring the mass of the test item, the density was determined. The relative density was obtained by dividing the measured density of the test item by the density of water at 4 °C (0.9999750 g/cm³). Two tests with different amounts of the test item were run.
The mean density of the test item at 20 °C is 1.20138 g/cm³; therefore, the relative density was calculated to be 1.201 at 20 °C.
Conclusion
Relative density: 1.201 at 20 °C
Reference
The mean density of the test item at 20 °C is 1.20138 g/cm³.
| Test No. | Temperature [°C] | Amount of test item [g] | Average sample volume [cm³] | Density [g/cm³]* |
| 1 | 20 | 8.15 | 6.78875 | 1.20052 |
| 2 | 20 | 7.92 | 6.58778 | 1.20223 |
* The pressurizing-expansion cycles are performed until 4 subsequent volume measurements have a relative standard deviation (RSD) of ≤ 0.2 %.
Description of key information
1.201 at 20 °C
Key value for chemical safety assessment
- Relative density at 20C:
- 1.201
Additional information
OECD 109 - air comparison pycnometer
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