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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 dates: 20-21 October 2020
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The study was conducted according to an internationally recognised method, and under GLP. The substance is adequately characterised. Therefore full validation applies.
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
02 Oct. 2012
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
Commission Regulation No 440/2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
signed on 15 Nov. 2018
Type of method:
pycnometer method
Specific details on test material used for the study:
Actual storage conditions: Stored in a dry place in original glass bottle, protected from light at ambient temperature
Dynamic viscosity of test material:
visually lowly viscous (suitable for pycnometer method)
Type:
density
Density:
902.7 kg/m³
Temp.:
20 °C
Key result
Type:
relative density
Density:
0.903
Temp.:
20 °C

Results of the two determinations are reported in the following table:











































MeasurementDetermination
 12
Temperature (°C)20.020.0
Mass of the empty pycnometer (m0) (g)31.438831.6185
Mass of the pycnometer filled with ultrapure water (m2) (g)81.492281.6504
Mass of the pycnometer filled with the test item (m1) (g)76.692376.8605
Density of the test item (kg/m3)902.6902.8
Mean Density (kg/m3)902.7

The two determinations are within the validity criteria of the method: (less than 1% of difference).
No additional determination was performed.
The relative density of the test item was calculated to be D20/4 = 0.903.

Conclusions:
The substance is much less dense than water.
Executive summary:

The density of the test substance was measured under GLP according OECD 109 / EU A3 guideline, pycnometer method.
Calibration was performed with water. Experiment was performed at 20 °C in duplicate, and the mean density was calculated, and converted to relative density vs water at 4°C.
The density of the test substance at 20 ºC was 902.7 kg/m3. The relative density D20/4 was 0.903.

Description of key information

Experimental density = 902.7 kg/m3 at 20°C. Relative density D20/4 = 0.903.
The substance is much less dense than water.

Key value for chemical safety assessment

Relative density at 20C:
0.903

Additional information

A fully reliable experimental study, conducted according to a recognized OECD method and under GLP, is available. It is considered as key study, and the result is retained as key data.