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Diss Factsheets

Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
20 July 2018 to 24 October 2018
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)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
Date of Inspection: 18 July 2017 to 20 July 2017 Date on Certificate: 28 November 2017
Type of method:
pycnometer method
Dynamic viscosity of test material:
Not reported but it was reported that due to the high viscosity of the test item, it was not feasible to use standard pycnometers. Therefore it was considered that a universal tube with a microscope slide acting as a "lid" would be more appropriate.
Type:
density
Density:
935 kg/m³
Temp.:
20 °C
Key result
Type:
relative density
Density:
0.935 other: dimensionless
Temp.:
20 °C

The results for duplicate determinations of density are shown in the following table:

Table 1

Measurement

Determination

1

2

Mass of apparatus (g)

25.5666

25.4828

Mass of apparatus and purified water at 20.0 °C (g)

63.8147

63.7190

Mass of apparatus and test item at 20.2 °C (g)

61.3589

61.3133

Temperature of test item (°C)

20.2

Density of water at 20.0 °C (kg/m3)

998.20

Density of test item (kg/m3)

934

935

 

Mean density: 935 kg/m3

Relative density: 0.935

Temperature: 20 °C ± 0.5 °C

Due to the high viscosity of the test item, it was not feasible to use standard pycnometers. Therefore, it was considered that a universal tube with a microscope slide acting as a "lid" would be more appropriate.

Conclusions:
The density of the test item has been determined to be 935 kg/m3 at 20.0 ± 0.5 °C; relative density: 0.935.
Executive summary:

The density of the test item has been determined to be 935 kg/m3 at 20.0 ± 0.5 °C; relative density: 0.935, via the pycnometer method, using a procedure designed to be compatible with Method A.3 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.

Description of key information

 The density of the test item has been determined to be 935 kg/m3 at 20.0 ± 0.5 °C; relative density: 0.935.

Key value for chemical safety assessment

Relative density at 20C:
0.935

Additional information

The density of the test item has been determined to be 935 kg/m3 at 20.0 ± 0.5 °C; relative density: 0.935, via the pycnometer method, using a procedure designed to be compatible with Method A.3 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. Due to the high viscosity of the test item, it was not feasible to use standard pycnometers. Therefore, it was considered that a universal tube with a microscope acting as a "lid" would be more appropriate.