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EC number: 930-010-9 | CAS number: 461432-25-7
The pressure readings and the calculated volume for the reference and sample cells are shown in the following table:
Mean reference cell volume : 90.752 cm3
Mean sample cell volume : 149.090 cm3
As the reference cell volume and sample cell volume were within the defined tolerance (90.953 ± 1.0 cm3 and 149.225 ± 1.0 cm3 for the reference and sample cell volumes respectively) the gas comparison pycnometer was therefore considered acceptable for use.
The pressure readings, calculated volumes and density values obtained for the test item are shown in the following table:
Mean density : 1.30 x 103 kg/m3
Relative density : 1.30
Temperature : 23.0 ± 0.5 °C
The mass density of a substance varies with temperature and pressure and this variance is typically negligible for solids. Increasing the temperature of a substance may decrease its density by increasing the volume of that substance. Typical thermal expansion coefficients of solids are in the order of 10-5 °C-1, and the volumetric expansion of stainless steel (used as calibration spheres) at 20 °C is approximately 5.2 x 10-5 °C-1.
Therefore, a change in temperature of several degrees will have no significant effect on the volume and hence the density of a solid substance. Therefore, it was considered that the difference in temperature between 20.0 °C and normal laboratory conditions did not have a significant effect on the determined density and therefore the calculated relative density.
The general physico-chemical properties of BMS-587172-01 have been determined. The results are summarized below:
1.30 x 103 kg/m3 at 23.0 ± 0.5 °C, relative density 1.30, using a gas comparison pycnometer method, designed to be compatible with Method A3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 109 of the OECD Guidelines for Testing of Chemicals, 02 October 2012.
The density of the test item has been determined to be 1.30 x 10³ kg/m³ at 23.0 ± 0.5 °C, relative density 1.30.
The determination was carried with a gas comparison pycnometer, using a procedure designed to be compatible with Method A3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 109 of the OECD Guidelines for Testing of Chemicals, 02 October 2012.
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