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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:
30.06. - 21.08.15
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
no
Type of method:
air comparison pycnometer (for solids)
Type:
density
Density:
1.42 g/cm³
Temp.:
20 °C
Key result
Type:
relative density
Density:
1.42 other: dimensionless
Temp.:
20 °C

A measurement chamber with a volume of Vc = 7.8961 cm3 and an expansion chamber with a volume of Vr = 6.0848 cm3 were used. Two test series with different weights were performed at ambient temperature (20.0 °C).

 

Results of the 1st test series

Weight: 1.3338 g

Pi/ psi

p / psi

Volume / cm3

Density p g/cm3

1. measurement

19.546

10.426

0.9399

1.4191

2. measurement

19.557

10.432

0.9397

1.4194

3. measurement

19.583

10.445

0.9409

1.4175

Mean

 

 

0.9402

1.4187

 

 

Results of the 2n d test series

Weight: 1.4721 g

Pi/ psi

p / psi

Volume / cm3

Density p g/cm3

1. measurement

19.511

10.338

1.0384

1.4176

2. measurement

19.532

10.349

1.0386

1.4174

3. measurement

19.526

10.346

1.0384

1.4177

Mean

 

 

1.0385

1.4176

 

Mean density p for the two test series: 1.4182 g/cm3

Relative density (compared to water at 4 °C): 1.42 ± 0.01.

Conclusions:
The relative density at ambient temperature (compared to water at 4°C) was determined to be 1.42.
Executive summary:

A study was conducted according to OECD TG 109, Regulation (EC) No 440/2008 method A.3 determine the relative density of the test item. The density was determined in six independent determinations. Using the pycnometer method the density was determined to be 1.4182 g/cm3 at 20 °C and the relative density 1.42 ± 0.01 with respect to water at 4 °C respectively.

Description of key information

The relative density at ambient temperature (compared to water at 4°C) was determined to be 1.42 (reference 4.4 -1).

Key value for chemical safety assessment

Relative density at 20C:
1.42

Additional information

A study was conducted according to OECD TG 109, Regulation (EC) No 440/2008 method A.3 determine the relative density of the test item (reference 4.4 -1). The density was determined in six independent determinations. Using the pycnometer method the density was determined to be 1.4182 g/cm3 at 20 °C and the relative density 1.42 ± 0.01with respect to water at 4 °C respectively.