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Diss Factsheets

Physical & Chemical properties

Density

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Administrative data

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Reference
Endpoint:
relative density
Remarks:
Other density types indicated (migrated information): density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
The study was conducted between 23 October 2014 and 01 July 2015
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
Principles of method if other than guideline:
As per the above guidelines
GLP compliance:
yes (incl. QA statement)
Type of method:
pycnometer method
Specific details on test material used for the study:
None
Dynamic viscosity of test material:
Not specified
Type:
density
Density:
1 770 kg/m³
Temp.:
22 °C
Key result
Type:
relative density
Density:
1.77
Temp.:
22 °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

17.131

6.480

17.106

8.472

90.559

148.850

2

17.095

6.472

17.091

8.465

90.878

149.166

3

17.097

6.473

17.088

8.466

90.806

149.039

Mean reference cell volume: 90.748 cm3

Mean sample cell volume: 149.018 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.

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

17.145

9.981

16.893

1.78E+03

1.78E+03

B

17.137

6.979

16.934

1.77E+03

C

17.065

6.946

16.816

1.78E+03

2

A

17.096

6.959

16.828

1.75E+03

1.76E+03

B

17.170

6.987

16.760

1.76E+03

C

17.084

6.948

16.632

1.77E+03

Mean density : 1.77E+03 kg/m3

Relative density : 1.77

Temperature : 22.3 ± 0.5 °C

Conclusions:
The density of the test item has been determined to be 1.77E+03 kg/m3 at 22.3 ± 0.5 °C, thereby giving a relative density of 1.77.
Executive summary:

A study was conducted to evaluate the density of the test substance in accordance with EU Method A.3 and OECD Guideline 109. Using a gas comparison pycnometer, the density was determined to be 1.77E+03 kg/m3 at 22.3 ± 0.5 °C, thereby giving a relative density of 1.77.

Description of key information

The density was determined to be 1.77E+03 kg/m3 at 22.3 ± 0.5 °C, thereby giving a relative density of 1.77.

Key value for chemical safety assessment

Relative density at 20C:
1.77

Additional information

A study was conducted to evaluate the density of the test substance in accordance with EU Method A.3 and OECD Guideline 109. Using a gas comparison pycnometer, the density was determined to be 1.77E+03 kg/m3 at 22.3 ± 0.5 °C, thereby giving a relative density of 1.77.