Registration Dossier
Registration Dossier
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EC number: 244-320-0 | CAS number: 21295-57-8
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- density, other
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 12.05.2017
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- - Principle of test: Gas displacement Pycnometry with Helium
Instrument: Micromeritics AccuPyc // TEC 1340
- Short description of test conditions:
The weighed sample is sealed in the instrument compartment of known volume, Helium is admitted, and then expanded into another precision
internal volume. The pressures observed upon filling the sample chamber and
then discharging it into a second empty chamber allow computation of the sample
solid phase volume. There are 10 cycles from which the sample volume is determined, and the density is calculated by dividig this by the mass.
- Parameters analysed / observed:
Sample Mass / Equilibrium rate, Temperature, Expansion volume - GLP compliance:
- no
- Type of method:
- pycnometer method
- Key result
- Type:
- density
- Density:
- 1.307 g/cm³
- Temp.:
- 23 °C
- Conclusions:
- The density of the substance has been determined as 1.3070 g/cm³ at 23°C
Reference
Pressure and Volume Table
| Cycle # | P1 Pressure (psig) | P2 Pressure (psig) | Volume (cm³) | Density (g/cm³) |
| 1 | 19.815 | 11.057 | 1.0782 | 1.3105 |
| 2 | 19.893 | 11.100 | 1.0790 | 1.3096 |
| 3 | 19.816 | 11.057 | 1.0794 | 1.3090 |
| 4 | 19.936 | 11.067 | 1.0812 | 1.3069 |
| 5 | 19.847 | 11.073 | 1.0810 | 1.3072 |
| 6 | 19.900 | 11.103 | 1.0815 | 1.3065 |
| 7 | 19.907 | 11.106 | 1.0819 | 1.3061 |
| 8 | 19.862 | 11.081 | 1.0816 | 1.3064 |
| 9 | 19.906 | 11.104 | 1.0842 | 1.3033 |
| 10 | 19.792 | 11.042 | 1.0830 | 1.3047 |
Average Volume: 1.0811 cm³ Standard Deviation: 0.0017 cm³
Average Density: 1.3070 g/cm³ Standard Deviation 0.0021 g/cm³
Description of key information
Key value for chemical safety assessment
- Relative density at 20C:
- 1.33
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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