Registration Dossier
Registration Dossier
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EC number: 685-618-4 | CAS number: 35194-30-0
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental Date: 18 November 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The study was conducted according to an internationally recognised method, with no deviation, and under GLP. The test substance is adequately characterised. Therefore full validation applies.
- 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:
- Commission Regulation (EC) No 440/2008 (no update to the A.3 method since 2008)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed on 15 Nov. 2018
- Type of method:
- pycnometer method
- Dynamic viscosity of test material:
- visually lowly viscous (suitable for pycnometer method)
- Type:
- density
- Density:
- 841 kg/m³
- Temp.:
- 20 °C
- Key result
- Type:
- relative density
- Density:
- 0.841 other: relative density has no dimension
- Temp.:
- 20 °C
- Conclusions:
- The substance is much less dense than water.
- Executive summary:
The density of the test substance was measured under GLP according OECD 109 / EU A3 guideline, pycnometer method.
Calibration was performed with water. Experiment was performed at 20°C in duplicate, and the mean density was calculated, and converted to relative density vs water at 4°C.
The density of the test substance at 20°C was 841.0 kg/m3. The relative density D20/4 was 0.841.
Reference
Results of the two determinations are reported in the following table:
| Measurement | Determination | |
| 1 | 2 | |
| Temperature (°C) | 20.0 | 20.0 |
| Mass of the empty pycnometer (m0) (g) | 31.4361 | 31.6210 |
| Mass of the pycnometer filled with ultrapure water (m2) (g) | 81.4889 | 81.6404 |
| Mass of the pycnometer filled with the test item (m1) (g) | 73.5995 | 73.7525 |
| Density of the test item (kg/m3) | 841.1 | 841.0 |
| Mean Density (kg/m3) | 841.0 | |
The two determinations are within the validity criteria of the method (less than 1% of difference).
No additional determination was performed.
The relative density of the test item was determined to be D20/4 = 0.841
Description of key information
Experimental density = 841.0 kg/m3 at 20°C. Relative density D20/4 = 0.841. (OECD 109, pycnometer; GLP)
The substance is much less dense than water.
Key value for chemical safety assessment
- Relative density at 20C:
- 0.841
Additional information
A fully reliable experimental study, conducted according to a recognized OECD method and under GLP, is available.
It is considered as key study, and the result is retained as key data.
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