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Diss Factsheets

Physical & Chemical properties

Density

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018-04-20 to 2018-04-20
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)
Version / remarks:
2 October 2012
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
May 2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
Version / remarks:
June 2002
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: CIPAC Handbook Volume F, CIPAC MT 3.2 (Determination of Specific Gravity or Density of Liquids or Solids)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
pycnometer method
Key result
Type:
relative density
Density:
1.142 other: dimensionless
Temp.:
20 °C

The test was performed at 20 ºC under thermostatic conditions and the obtained density values are 1.1435 g/mL and 1.1403 g/mL for replicates R1 and R2, respectively. The calculated mean density value of the replicates was determined to be 1.1419 g/mL with 0.18% of RSD. The relative density () was given by the value of the density (ρ).

Conclusions:
The relative density of the test item was determined to be 1.1419 at 20 °C.
Executive summary:

To determine the relative density of the test item a study according to OECD TG 109, EU Method A.3, OPPTS 830.7300 and CIPAC MT 3.2 was performed. The empty pycnometer, pycnometer with water, pycnometer with wetting solution, pycnometer with 2/3 of test item and pycnometer with 2/3 of test item with wetting solution were weighed and the weights were recorded to find out the water equivalent and the volume of the pycnometer. The density of the wetting solution as well as the volume of wetting solution and density of the test item were calculated from the water equivalent and the volume of the pycnometer. The test was performed at 20 ºC under thermostatic conditions and the obtained density values are 1.1435 g/mL and 1.1403 g/mL for replicates R1 and R2, respectively. The calculated mean density value of the replicates was determined to be 1.1419 g/mL with 0.18% of RSD. The relative density was given by the value of the density (ρ).

Description of key information

The relative density of the test item was determined to be 1.1419 at 20 °C.

Key value for chemical safety assessment

Relative density at 20C:
1.142

Additional information

A study was conducted according to OECD guideline 109, Regulation (EC) No 440/2008 method A.3, OPPTS 830.7300 and CIPAC Handbook Volume F, MT 3.2 to determine the relative density of the test item. The density of the test item was measured in duplicate. Using the pycnometer method the mean density was determined to be 1.1419 g/mL with 0.18% of RSD. The relative density (D) was given by the value of the density (ρ): 1.1419 at 20 °C.