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Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-08-09 to 2017-08-18
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reference:
Composition 0
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:
pycnometer method
Test material information:
Composition 1
Key result
Type:
relative density
Density:
1.354 other: dimensionless
Temp.:
20 °C

Check of the Pycnometer

The apparatus was checked by measuring of the volume of the reference sphere.

The check of the apparatus showed that the instrument worked correctly and was fit for purpose.

Sample Measurement

The density of the test item was determined two times with individually prepared samples. Since the relative deviation between the two measurements was ≤ 0.5 %,the quality criteria of the measurement were fulfilled. The data, the mean of the densities, and its relative deviation are presented in Table 1 and Table 2.

 

Table 1: Masses of Propyl gallate (Propyl-3,4,5-trihydroxybenzoate)

Sample No.

Mass of empty vessel [g]

Mass of vessel and test item [g]

Mass of test item [g]

1

6,5627

15,7127

9,1500

2

6,5629

14,5872

8,0243

Table 2: Density of Propyl gallate (Propyl-3,4,5-trihydroxybenzoate)  

Sample No.

Determined sample volume [cm³]

Weight of test item [g]

Temperature [°C]

Density [cm³]

Relative Density [-]

1

6,75510

9,1500

19,99

1,3545

1,3545

2

5,92829

8,0243

19,99

1,3536

1,3536

 

mean:

19,99

1,3541

1,3541

absolute deviation:

0,0

0,0009

0,0009

relative deviation [%]

0,0

0,07

0,07

The mean relative density of Propyl gallate (Propyl-3,4,5-trihydroxybenzoate) was determined to be 1.3541 at 20°C relating to the nominal density of water at 4 °C (0.999972 g/cm3).     

Conclusions:
The relative density of Propyl gallate (Propyl-3,4,5-trihydroxybenzoate) was determined according to EC method A.3 and OECD guideline 109. The mean relative density of Propyl gallate (Propyl-3,4,5-trihydroxybenzoate) was determined to be 1.3541 at 20°C relating to the nominal density of water at 4 °C (0.999972 g/cm³).
Executive summary:

The relative density of Propyl gallate (Propyl-3,4,5-trihydroxybenzoate) was determined according to EC method A.3 and OECD guideline 109. The mean relative density of Propyl gallate (Propyl-3,4,5-trihydroxybenzoate) was determined to be 1.3541 at 20°C relating to the nominal density of water at 4 °C (0.999972 g/cm³).    

Description of key information

The relative density of propyl gallate (propyl-3,4,5-trihydroxybenzoate) was determined according to EC method A.3 and OECD guideline 109. The mean relative density of propyl gallate (propyl-3,4,5-trihydroxybenzoate) was determined to be 1.3541 at 20°C relating to the nominal density of water at 4 °C (0.999972 g/cm³).    

Key value for chemical safety assessment

Relative density at 20C:
1.354

Additional information