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Physical & Chemical properties

Density

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Reference
Endpoint:
density
Remarks:
density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study performed according to international guidelines
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Principles of method if other than guideline:
The density is determined by measuring the volume of a known mass of the test substance by means of a gas displacement pycnometer. In gas pycnometric density measurements, the volume determined excludes the volume occupied by open pores; however, it includes the volume occupied by sealed pores or pores inaccessible to the gas if present.
The volume occupied by the test substance is determined from the exactly known volumes of the empty test chamber and expansion chamber, determined by calibration, and the pressure change of an inert gas (usually helium) in the test chamber, that results when the connection to the expansion chamber is opened. For the calculation of the density the mass of the test substance is measured with an analytical balance.
GLP compliance:
yes (incl. certificate)
Remarks:
DIN EN ISO/IEC 17025 certified
Type of method:
pycnometer method
Specific details on test material used for the study:
Umicore h-powder
Type:
density
Density:
2 410 kg/m³
Temp.:
20 °C

 Test  #1  #2
 mass (g)  6.3959  6.4620
 volume (cm3)  2.6688  2.6734
 Density (g/cm3)  2.3966  2.4171
Conclusions:
The density of the test substance at 20°C is 2410 kg/m3

Description of key information

The relative density of the powder at 20°C is 2.41 g/cm3.

Key value for chemical safety assessment

Relative density at 20C:
1.614

Additional information