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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:
14 January 2010 to 04 February 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
oscillating densitimeter
Key result
Type:
relative density
Density:
1.01 other: dimensionless
Temp.:
20 °C

The determination of the relative density of the test item was performed in accordance with the EC directive 92/69, EEC Publication No. L383, December 1992 and Council Regulation EC No. 440/2008, Methods for the determination of physico-chemical properties, A.3 Relative density, as well as the OECD Guideline for Testing of Chemicals, No. 109, Density of Liquids and Solids using an oscillating densitimeter. As the density of the test item was determined at 20.0 °C, the relative density is stated.

 

First, the apparatus was tested by determination of the density of air and water at 20.0 °C. The results for water are given in Table 1. These values are in the accepted range of 0.9982 ± 0.0003 g/cm3.

 

Table 2 shows the individual measurements for the density of 2-ethylhexyl 4-methoxycinnamate. From these, the mean value was calculated, corrected and given in the same table. The tabulated values represent rounded results obtained from calculation using the exact raw data. The relative density of 2-ethylhexyl 4-methoxycinnamate was determined to be  D204 = 1.0104.

Table 1       Results of the Calibration Using Air and Water

 

Test No.

 

Temperature

[°C]

 

Density of water

[g/cm3]

 

 

 

measured

 

mean value

 

theoretical value

1

20.0

0.9982

 

 

2

20.0

0.9982

0.9982

0.9982

3

20.0

0.9982

 

 

 

The density of air was measured to be 0.0012 g/cm3.

 

 

Table 2       Determination of the Density of the Test Item

 

Test No.

 

Temperature

[°C]

 

Density of 2-ethylhexyl 4-methoxycinnamate

[g/cm3]

 

 

 

measured

mean value

corrected for relative density

1

20.0

1.0104

1.0104

1.0104

2

20.0

1.0104

 

 

Calculation of the relative density

 

 = 1.0104 g/cm3 / 0.99997 g/cm3 = 1.0104

Conclusions:
The relative density of 2-ethylhexyl 4-methoxycinnamate was determined to be 1.0104.
Executive summary:

First, the apparatus was tested by determination of the density of air and water at 20.0 °C. The results for water are given in Table 1. These values are in the accepted range of 0.9982 ± 0.0003 g/cm3

The relative density of 2-ethylhexyl 4-methoxycinnamate was determined to be D204 = 1.0104.

Description of key information

The relative density of 2-ethylhexyl 4-methoxycinnamate was determined to be 1.0104.

Key value for chemical safety assessment

Relative density at 20C:
1.01

Additional information

The density of Ethylhexyl Methoxycinnamate was determined to 0.9982 g/cm^3 at 20 °C in a study according to OECD guideline 109 under GLP. The relative density of 2-ethylhexyl 4-methoxycinnamate was determined to be D204= 1.0104.