Registration Dossier
Registration Dossier
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EC number: 432-080-1 | CAS number: -
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 18 November 1998
- 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
- GLP compliance:
- yes
- Type of method:
- air comparison pycnometer (for solids)
- Type:
- relative density
- Density:
- 1.49
- Temp.:
- 23.5 °C
- Conclusions:
- The relative density (compared to water at 4 °C) is 1.49
- Executive summary:
The purpose of the test was the determination of the relative density according to Guideline 92/69/EEC Part A.3. Relative Density using theAir comparison pycnometer (for solids) method. Study conducted in compliance with GLP.
The density of a solid in any form can be measured at room temperature with the gas comparison pycnometer. The volume of a substance is measured in air or in an inert gas in a cylinder of variable calibrated volume. For the calculation of density one mass measurement is taken after concluding the volume measurement,
Instrument: gas comparison pycnometer, model 930 (Beckmann).
The relative density (compared to water at 4°C) is DR4= 1.49
Reference
Two test series with different weights were carried out in air.
weight / g |
20.1011 |
22.2339 |
|
|
volume / cm3 |
|
|
1. |
measurement |
13.51 |
14.99 |
2. |
measurement |
13,49 |
14.96 |
3. |
measurement |
13.50 |
15.02 |
mean |
13.50 |
14.99 |
|
density g / cm3 |
1.49 |
1.48 |
|
Ambient temperature: 23.5 °C
Description of key information
The relative density (compared to water at 4°C) is DR4= 1.49
Key value for chemical safety assessment
- Relative density at 20C:
- 1.49
Additional information
Instrument: gas comparison pycnometer, model 930 (Beckmann).
The relative density (compared to water at 4°C) is DR4= 1.49
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