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Physical & Chemical properties

Density

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Reference
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

Pressure and Volume Table


















































































Cycle #P1 Pressure (psig)P2 Pressure (psig)Volume (cm³)Density (g/cm³)
119.81511.0571.07821.3105
219.89311.1001.07901.3096
319.81611.0571.07941.3090
419.93611.0671.08121.3069
519.84711.0731.08101.3072
619.90011.1031.08151.3065
719.90711.1061.08191.3061
819.86211.0811.08161.3064
919.90611.1041.08421.3033
1019.79211.0421.08301.3047

Average Volume: 1.0811 cm³ Standard Deviation: 0.0017 cm³


Average Density: 1.3070 g/cm³  Standard Deviation 0.0021 g/cm³


 

Conclusions:
The density of the substance has been determined as 1.3070 g/cm³ at 23°C

Description of key information

Key value for chemical safety assessment

Relative density at 20C:
1.33

Additional information