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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:
19 August 2019 to 12 September 2019
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
Specific details on test material used for the study:
No further details specified in the study report
Dynamic viscosity of test material:
Not specified
Key result
Type:
relative density
Density:
1.182 kg/m³
Temp.:
20 °C

Determining the Volume of the Pycnometer(s)

 

Test Run 1

Test Run 2

Pycnometer Identification Number

17.0697

17.06131

Mass of Empty Pycnometer (g)

23.5599

23.5538

Mass of Water and Pycnometer (g)

48.1412

48.2540

Temperature (°C)

20.8

20.8

Density of Water (g.cm-3)

0.998035

0.998035

Volume of Pycnometer (mL)

24.6297

24.7488

 

Determining the Density of the Immersion Liquid

 

Test Run 1

Test Run 2

Mass of Empty Pycnometer (g)

23.5599

23.5538

Mass of Immersion liquid & Pycnometer (g)

47.2640

47.3810

Mass of Immersion liquid (g)

23.7041

23.8271

Density of Immersion liquid (g.cm-3)

0.9624

0.9628

 

Determining the Density of the Test Item

 

Test Run 1

Test Run 2

Mass of Empty Pycnometer (g)

23.5599

23.5538

Mass of Test Item and Pycnometer (g)

31.9634

32.5440

Mass of Test Item (g)

8.4035

8.9902

Mass of Test Item, IL and Pycnometer (g)

48.8640

49.0055

Mass of Immersion liquid added (g)

16.9006

16.4615

Density of Test Item (g.cm-3)

1.1888

1.1751

Mean Density (kg.m-3)

1181.9

 

Mean Result:

Relative density (D204) 1.1819

Test Item density 1181.9 kg.m-3 @ 20°C

Conclusions:
The relative density of test substance CAS 577978-76-8 was determined to be 1.1819 kg/m3 at 20 °C.
Executive summary:

The relative density of test substance CAS 577978 -76 -8 was determined in accordance to test guideline OECD 109, in compliance with GLP.

The relative density D20 4 of solids or liquids is the ratio between the mass of a volume of substance to be examined, determined at 20°C, and the mass of the same volume of water, determined at 4°C. The relative density has no dimension.

The density, ρ, of a substance is the quotient of the mass, m, and its volume, v. The density, ρ, is given, in SI units, in kg/m3.

Pycnometers of various shapes and with known volumes were employed. The density was calculated from the difference in weight between the full and empty pycnometer and its known volume. The tests were run at a constant temperature, preferably 20°C, and at least two measurements were generally performed.

The relative density of  test substance CAS 577978-76-8 was determined to be 1.1819 kg/m3 at 20 °C.

Description of key information

The relative density of  test substance CAS 577978-76-8 was determined to be 1.1819 kg/m3 at 20 °C.

Key value for chemical safety assessment

Relative density at 20C:
1.182

Additional information