Registration Dossier
Registration Dossier
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EC number: 228-958-7 | CAS number: 6379-72-2
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- No data
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Remarks:
- The study was conducted similarly to internationally recognised method, but not under GLP, and calibration was partly not suitable. Test substance is adequately specified with isomer purity. Therefore validation applies with minor restrictions.
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Deviations:
- yes
- Remarks:
- calibration substances air and water instead of 2 liquid substances
- GLP compliance:
- not specified
- Type of method:
- oscillating densitimeter
- Key result
- Type:
- relative density
- Density:
- 1.051
- Temp.:
- 25 °C
- Conclusions:
- The substance is slightly denser than water.
- Executive summary:
The relative density of the test substance was measured using oscillating densitimeter method. After calibration using air and water, a sample was measured in triplicate at 25 °C, and the mean relative density was calculated towards water at 25°C.
The relative density of the test substance (d25/25) has been determined to be 1.051 at 25 °C.
Reference
Table 4.4/1: Results of the calibration using air and water
Test No. |
Temperature [°C] |
Density of water [g/cm3] |
||
Measured |
Mean value |
Theoretical value |
||
1 |
25 |
0.99704 |
|
|
2 |
25 |
0.99704 |
0.99704 |
0.99704 |
3 |
25 |
0.99704 |
|
|
The density of air at 25 °C is 0.0012 g/cm3.
Table 4.4/2: Determination of the density of test substance
Test No. |
Temperature [°C] |
Density of test substance [g/cm3] |
|
Measured |
Mean value |
||
1 |
25 |
1.04789 |
|
2 |
25 |
1.04789 |
1.04789 |
3 |
25 |
1.04789 |
|
Calculation of the relative density
Relative Density = 1.04789 g/cm3/ 0.99704 g/cm3= 1.051
Description of key information
Measured density = 1.048 g/cm3 at 25°C. Relative density (d25/25) = 1.051.
The substance is slightly denser than water.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.051
Additional information
A reliable experimental study, conducted similarly to OECD method, is available. Despite minor restrictions (due to technical inaccuracy and not GLP) it is considered as a key study. The result is retained as key data.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
