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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:
from 2018-08-29 to 2018-10-10
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
Qualifier:
according to
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
pycnometer method
Type:
density
Density:
0.778 g/cm³
Temp.:
20 °C
Key result
Type:
relative density
Density:
0.778 other: dimensionless
Temp.:
20 °C
Type:
density
Density:
0.768 g/cm³
Temp.:
40 °C
Type:
relative density
Density:
0.768 other: dimensionless
Temp.:
40 °C

The pycnometer was calibrated at 20 and 40 °C. The density of the test item was determined from five replicates at 20 °C and at 40 °C with the determined volume of the pycnometers (24.2441 cm3 and 24.6833 cm3, respectively).

Table 1. Density of the test item at 20 °C

Empty pycnometer, g

Pycnometer with test item, g

Test item in the pycnometer, g

Density of the test item, g/cm3

31.68317

50.53832

18.85515

0.7777

31.68316

50.53767

18.85451

0.7777

31.68315

50.53945

18.85630

0.7778

31.68310

50.53834

18.85524

0.7777

31.68313

50.53743

18.85430

0.7777

Mean:

0.7777

Confidence int. (95 %):

0.00004

RSD (CV %):

0.004

 

Table 2. Density of the test item at 40 °C

Empty pycnometer, g

Pycnometer with test item, g

Test item in the pycnometer, g

Density of the test item, g/cm3

31.68351

50.65550

18.97199

0.7686

31.68451

50.59180

18.90729

0.7660

31.68343

50.63203

18.94860

0.7677

31.68357

50.65309

18.96952

0.7685

31.68349

50.65185

18.96836

0.7685

Mean:

0.7679

Confidence int. (95 %):

0.00137

RSD (CV %):

0.144

 

Conclusions:
The relative density of the test item was determined to be 0.7777 ± 0.00004 at 20 °C and 0.7679 ± 0.00137 at 40 °C.
Executive summary:

A study was conducted according to OECD TG 109, Regulation (EC) No 440/2008 method A.3 and OPPTS 830.7300 to determine the relative density of the test item. The density was determined in five independent determinations at 20 and 40 °C. Using the pycnometer method the density was determined to be 0.7777 ± 0.00004 g/cm3 at 20 °C and the relative density 0.7777 with respect to water at 4 °C, respectively. The density at 40 °C was determined to be 0.7679 ± 0.00137 g/cm3 and the relative density 0.7679 with respect to water at 4 °C, respectively.

Description of key information

The relative density of the test item was determined to be 0.7777 ± 0.00004 at 20 °C and 0.7679 ± 0.00137 at 40 °C.

Key value for chemical safety assessment

Relative density at 20C:
0.778

Additional information

A study was conducted according to OECD TG 109, Regulation (EC) No 440/2008 method A.3 and OPPTS 830.7300 to determine the relative density of the test item. The density was determined in five independent determinations at 20 and 40 °C. Using the pycnometer method the density was determined to be 0.7777 ± 0.00004 g/cm3 at 20 °C and the relative density 0.7777 with respect to water at 4 °C, respectively. The density at 40 °C was determined to be 0.7679 ± 0.00137 g/cm3 and the relative density 0.7679 with respect to water at 4 °C, respectively.