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Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Principles of method if other than guideline:
The density of the sample can be calculated based on these values - the mass of the pycnometer and water fulled in it, the mass of the pycnometer and the sample added in it and water filled in it followed, and the mass of the sample added in the pycnometer.
GLP compliance:
no
Type of method:
pycnometer method
Specific details on test material used for the study:
If the sample is not fine powdery solid, it should be ground into powder: take a small amount of sample (about 0.5 mL ~ 1 mL), and put it into a mortar and then grind it, until all become fine powder. In order to prevent moisture absorption, the procedure should be carried out under an infrared lamp, or dry the sample after grinding.
Type:
relative density
Density:
ca. 5.663 g/cm³
Temp.:
20 °C

Table2 Determination results of the desity

NO.

1

2

Mass of the sample taken ,m/g

3.0863

6.9791

Mass of the pycnometer full of the water standard ,m1/g

18.9370

18.9032

Mass of the pycnometer added the sample in and filled with water standard, m2/g

21.4903

24.6079

Density of the sample, ρ1/(g/cm3)

5.7898

5.4758

Average value/(g/cm3)

5.633

Conclusions:
Based on the determination results, the sample density is 5.633 g/cm3 (20°C).

Description of key information

Key value for chemical safety assessment

Relative density at 20C:
5.633

Additional information