Yttrium trinitrate

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 5 September 2012 to 13 March 2013

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:

EU Method A.3 (Relative Density)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

pycnometer method

Key result

Type:

relative density

Density:

2.086 other: dimensionless

Temp.:

24.4 °C

Assay No. 1

Four runs were performed; test item weight: 75.4372 g. The results of run 1 are not reported as they did not comply with the quality criterion. Results of the remaining three runs are 2.0885, 2.0878 and 2.0888 g/cm³, with a calculated mean density of 2.088 g/cm³.

Temperature during the assay: 24.6°C.

Assay No. 2

Four runs were performed; test item weight: 79.4195 g. The results of run 1 are not reported as they did not comply with the quality criterion. Results of the remaining three runs are 2.0824, 2.0849 and 2.0853 g/cm³, with a calculated mean density of 2.084 g/cm³.

Temperature during the assay: 24.2°C.

Conclusions:

The relative density of the test item using the gas comparison method with the stereopycnometer was 2.086.

Description of key information

The relative density of yttrium trinitrate was determined to be 2.086 ± 0.002 at 24.4°C in a GLP test performed according to EC method A.3, following the gas comparison pycnometer method (Demangel, 2013; Klimisch 1).

Key value for chemical safety assessment

Relative density at 20C:

2.086

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.