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Diss Factsheets

Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
21 Aug 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to other study
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
GLP compliance:
no
Type of method:
air comparison pycnometer (for solids)
Type:
relative density
Density:
ca. 1.47 other: dimensionless
Temp.:
20 °C

Results
Two test series with different weight were done at ambient temperature (20.0 °C).

Table 1 – 1st Test Series Results

Weight: 0.9690 g

p1[psi]

p2[psi]

Volume [cm3]

DensityρPR[g/cm3]

1stmeasurement

19.507

10.599

0.6562

1.4768

2ndmeasurement

19.543

10.619

0.6555

1.4783

3rdmeasurement

19.532

10.612

0.6570

1.4748

Mean

 

 

0.6562

1.4766

 

Table 2 – 2nd Test Series Results

Weight: 0.9337 g

p1[psi]

p2[psi]

Volume [cm3]

DensityρPR[g/cm3]

1stmeasurement

19.506

10.613

0.6344

1.4719

2ndmeasurement

19.516

10.619

0.6335

1.4738

3rdmeasurement

19.552

10.638

0.6344

1.4718

Mean

 

 

0.6341

1.4725

 

The mean density for the two test series is 1.47 g/cm3.

Conclusion: The relative density of the test item at ambient temperature (compared to water at 4 °C) was determined to be: D4R= 1.47

Conclusions:
The relative density of the test item at 20 °C (compared with water at 4 °C) was determined to be D4R 1.47.
Executive summary:

A study was performed in accordance with Commission Regulation (EC) No. 440/2008, method A.3 and OECD TG 109 by using the gas comparison pycnometer at 20.0 °C. Two tests were performed and the density of the test item was determined. The relative density of the test item was determined to be D4R 1.47.

Description of key information

A study was performed in accordance with Commission Regulation (EC) No. 440/2008, method A.3 and OECD TG 109 by using the gas comparison pycnometer at 20 °C. Two tests were performed and the density of the test item was determined. The relative density of the test item (calculated from the mean density of the test item) was determined to be D420= 1.47.

Key value for chemical safety assessment

Additional information