Registration Dossier
Registration Dossier
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EC number: 472-110-0 | CAS number: 71868-15-0
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018-11-29 - 2018-12-12 (experimental phase)
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.3 (Relative Density)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- air comparison pycnometer (for solids)
- Key result
- Type:
- relative density
- Density:
- 1.31
- Temp.:
- 20 °C
- Conclusions:
- relative density (at 20 °C ±0.01 °C): 1.31
- Executive summary:
According to OECD Guideline 109 and EU Method A.3., the relative density D420 of the test item 2-Hydroxy-1-[4-(4-(2-hydroxy-2-methylpropionyl)phenoxy)phenyl]-2-methylpropan-1-one at 20 °C ±0.01 °C (compared to water at 4 °C) is D420=1.31.
Reference
Two tests with different amounts of the test item were performed to determine the relative density D420at a temperature of 20 °C ± 0.01 °C.
Table: Results of the measurement of the density of the test item
Test No. |
Temperature [°C] |
Amount of test item [g] |
Average sample volume [cm³] |
Density [g/cm³]* |
1 |
20 |
4.8588 |
3.70741 |
1.31057 |
2 |
20 |
4.7600 |
3.64880 |
1.30453 |
* The pressurizing-expansion cycles are performed until 4 subsequent volume measurements have a relative standard deviation (RSD) of ≤ 0.2 %.
The mean density of the test item at 20 °C was 1.3101 g/cm³. The relative density D420 was calculated by dividing the density of the test item by the density of water at 4 °C (0.9999750 g/cm³).
Description of key information
The relative density of the test substance was determined by pyconometry according to OECD Guideline 109 and EU Method A.3 (Schiewer, 2019).
Key value for chemical safety assessment
- Relative density at 20C:
- 1.31
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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