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Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018-11-20 to 2018-11-28
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
air comparison pycnometer (for solids)
Key result
Type:
relative density
Density:
1.052 other: dimensionless
Temp.:
20 °C

Two tests with different amounts of the test item were performed to determine the relative density D420 at a temperature of 20 °C ± 0.01 °C.

 

Results of the measurement of the density of the test item

Test No.

Temperature

Amount of test

Average sample

Density

 

[°C]

item [g]

volume [cm3]

[g/cm3]*

1

20

7.62350

7.25146

1.05131

2

20

6.89204

6.55140

1.05199

* The pressurizing-expansion cycles are performed until 5 subsequent volume measurements have a relative standard deviation (RSD) of <0.2 %.

 

The mean density of the test item at 20 °C is 1.05165 g/cm3. The relative density D420 is calculated by dividing the density of the test item by the density of water at 4 °C (0.9999750 g/cm3). The relative density was determined to be D420 = 1.052.

Conclusions:
The relative density was determined to be D420 = 1.052.
Executive summary:

A study was conducted according to OECD TG 109, Regulation (EC) No 440/2008 method A.3 to determine the relative density of the test item. The density was determined in two independent determinations. Using the pycnometer method the density was determined to be 1.051 g/cm3 at 20 ± 0.5 °C and the relative density 1.052 with respect to water at 4 °C respectively.

Description of key information

The relative density was determined to be D420 = 1.052 (reference 4.4 -1).

Key value for chemical safety assessment

Relative density at 20C:
1.052

Additional information

A study was conducted according to OECD TG 109, Regulation (EC) No 440/2008 method A.3 to determine the relative density of the test item (reference 4.4 -1). The density was determined in two independent determinations. Using the pycnometer method the density was determined to be 1.051 g/cm3 at 20 ± 0.5 °C and the relative density 1.052 with respect to water at 4 °C respectively.