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Diss Factsheets

Physical & Chemical properties

Density

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Administrative data

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental starting date: 01 June 2017; Experimental completion date: 13 September 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)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
pycnometer method
Type:
density
Density:
1 310 kg/m³
Temp.:
19 °C
Type:
relative density
Density:
1.31 other: no dimensions
Temp.:
19 °C

Calibration:

The pressure readings and the calculated volume for the reference and sample cells are shown in the following table:

Determination

P1
(psig)

P2
(psig)

P3
(psig)

P4
(psig)

Reference Cell Volume (cm3)

Sample Cell Volume (cm3)

1

17.078

6.466

17.029

8.436

90.845

149.094

2

17.088

6.471

17.439

8.644

90.751

148.895

3

17.004

6.442

17.130

8.491

90.913

149.057

Mean reference cell volume   :          90.836 cm3
Mean sample cell volume       :          149.015 cm3

As the reference cell volume and sample cell volume were within the defined tolerance (90.953 ± 1.0 cm3and 149.225 ± 1.0 cm3for the reference and sample cell volumes respectively) the gas comparison pycnometer was therefore considered acceptable for use.

Sample:

The pressure readings, calculated volumes and density values obtained for the test item are shown in the following table:

Determination

Test

P1(sample)
(psig)

P2(sample)

(psig)

Volume (cm3)

Density

(kg/m3)

Mean Density (kg/m3)

1

A

17.063

6.745

10.061

1.32 x 103

1.32 x 103

B

17.033

6.733

10.056

1.32 x 103

C

17.085

6.755

10.105

1.31 x 103

2

A

17.227

6.828

10.673

1.31 x 103

1.31 x 103

B

17.060

6.764

10.747

1.30 x 103

C

17.037

6.754

10.717

1.31 x 103

Mean density            :          1.31 x 103 kg/m3
Relative density         :          1.31
Temperature             :          19.0 ± 0.5 °C


[1]Calculated from unrounded individual mean density values.

Conclusions:
The density of the test item has been determined to be 1.31 x 10^3 kg/m3 at 19.0 ± 0.5 °C; relative density: 1.31.
Executive summary:

The determination was carried out using a gas comparison pycnometer 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.

The density of the test item has been determined to be 1.31x 103kg/m3at 19.0 ± 0.5 °C; relative density: 1.31.

Description of key information

The determination was carried out using a gas comparison pycnometer 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.

The density of the test item has been determined to be 1.31 x 103kg/m3at 19.0 ± 0.5 °C; relative density: 1.31.

Key value for chemical safety assessment

Relative density at 20C:
1.31

Additional information