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Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
05 October 2017 to 13 December 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
2012
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
2016
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
Version / remarks:
2002
Deviations:
no
GLP compliance:
yes
Type of method:
pycnometer method
Key result
Type:
density
Density:
6.74 g/cm³
Temp.:
20 °C
Key result
Type:
relative density
Density:
6.74
Temp.:
20 °C

Table 1: Density of the Test Material

 

Test 1 (day 1)

Test 2 (day 1)

Test 3* (day 2)

Mass of pycnometer with test material [C]

35.8730 g

35.6895 g

35.7897 g

Mass pycnometer with test material topped with the n-Heptane [D]

41.8582 g

41.6958 g

41.7857 g

Density

6.737 g/cm^3

6.773 g/cm^3

6.740 g/cm^3

* As the difference between the results of Test 1 and Test 2 was > 0.01 g/cm3, an additional test was performed. As the result of Test 2 deviated significantly from Test 1 and 3, it was excluded from the calculation of the mean density.

Mean Density = 6.74 g/cm^3

Conclusions:
Under the conditions of this study the density of the test material at 20 °C was 6.74 g/cm^3 (6.74 x 10^3 kg/m^3). The relative density was 6.74.
Executive summary:

The density of the test material was investigated in accordance with the standardised guidelines OECD 109, EU Method A.3 and OPPTS 830.7300, under GLP conditions.

The density (ρ) and relative density (D4^20) of the test material were determined using a pycnometer with a volume of 10 mL. With this method the density of the test material was calculated from the difference in weight between the full and empty pycnometer and its volume. The test was performed in duplicate but as the difference between the results was > 0.01 g/cm^3, an additional test was performed and the deviating result was excluded from the determination.

Under the conditions of this study the density of the test material at 20 °C was 6.74 g/cm^3 (6.74 x 10^3 kg/m^3). The relative density was 6.74.

Description of key information

Under the conditions of this study the density of the test material at 20 °C was 6.74 g/cm^3 (6.74 x 10^3 kg/m^3). The relative density was 6.74.

Key value for chemical safety assessment

Relative density at 20C:
6.74

Additional information

The density of the test material was investigated in accordance with the standardised guidelines OECD 109, EU Method A.3 and OPPTS 830.7300, under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

The density (ρ) and relative density (D4^20) of the test material were determined using a pycnometer with a volume of 10 mL. With this method the density of the test material was calculated from the difference in weight between the full and empty pycnometer and its volume. The test was performed in duplicate but as the difference between the results was > 0.01 g/cm^3, an additional test was performed and the deviating result was excluded from the determination.

Under the conditions of this study the density of the test material at 20 °C was 6.74 g/cm^3 (6.74 x 10^3 kg/m^3). The relative density was 6.74.