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Diss Factsheets

Physical & Chemical properties

Density

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012-02-28
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
other: Gas comparison pycnometer – Stereopycnometer
Key result
Type:
relative density
Density:
2.444
Temp.:
21.3 °C

Two independent measurements were done (each in triplicate) resulting in a relative density of 2.441 and 2.446 at a temperature between 21.7 and 20.8 °C.

Conclusions:
The relative density of praseodymium trinitrate was determined to be 2.444 at 21.3 °C.

Description of key information

The relative density of praseodymium trinitrate was determined to be 2.444 at 21.3 °C in a GLP test according to OECD test guideline 109 and EC A.3, following the gas comparison pycnometer method (Ferron, 2012).

Key value for chemical safety assessment

Relative density at 20C:
2.444

Additional information

Although the test was not performed at 20 °C, the relatively small temperature difference is not considered to influence the density of a solid material to a significant extent.