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relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
03/07/2012 - 05/07/2012
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
EU Method A.3 (Relative Density)
GLP compliance:
yes (incl. QA statement)
Type of method:
pycnometer method
Key result
relative density
0.908 other: (corresponds to D4(20))
20 °C

Run number 3 revealed a relative density of 0.920 and run number 2 a relative density of 0.895. Run number 1 revealed a relative density of 0.949.

An initial test run (run 1) was completed using 3.5 g of the test material with 19.7 g of immersion liquid. A result of 830 kg/m3 was determined. The results of run 1 and run 2 were not within the 5% limit of repeatability therefore a third run was performed which showed agreement with run 2. Run 1 was considered erroneous and it is believed that this may have been due to sampling of the material. As testing had been performed in a glove box under a nitrogen atmosphere due to the hygroscopic nature of the material, sampling is believed to be the most likely reason for the discrepancy between run 1 and runs 2 & 3.

The relative density of the substance was determined to be 0.908 at 20°C.

Description of key information

The relative density of the test substance was determined in a GLP study according to test method EC A.3 to be 0.908 at 20 °C, following the pycnometer method (Younis, 2013).

Key value for chemical safety assessment

Relative density at 20C:

Additional information