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Physical & Chemical properties

Density

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Reference
Endpoint:
density, other
Remarks:
density and relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2009-09-15 to 2009-10-01
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Remarks:
Raw test data are missing in report.
Qualifier:
no guideline followed
Principles of method if other than guideline:
The true density of the sample was determined using a helium stereopycnometer. The technique is based on the determination of the true volume that the powder occupies, by means of the difference between the cell volume and the volume that the helium occupies that is introduced to complete the cell filling. True density is calculated by taking into account the mass of the powder used. The cell used for the density determination was the so-called Large cell, withe a volume of 135 cm³.
GLP compliance:
not specified
Type of method:
air comparison pycnometer (for solids)
Remarks:
helium stereopycnometer
Dynamic viscosity of test material:
no data - test item is a solid
Type:
density
Density:
4.93 g/cm³
Temp.:
20 °C
Remarks on result:
other: relative density D20/4= 4.93

The true density is 4.93 +/- 0.02 g/cm³. The relative density D204 compared to water at 4 °C is 4.93.

Conclusions:
The true density is 4.93 +/- 0.02 g/cm³. The relative density D20/4 compared to water at 4 °C is 4.93.

Description of key information

The relative density at 20 °C compared to water at 4 °C is 4.93.

Key value for chemical safety assessment

Relative density at 20C:
4.93

Additional information