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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:
28 September 2017 to 12 October 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
yes
Type of method:
pycnometer method
Key result
Type:
relative density
Remarks:
Mean of assay 1
Density:
2.586
Temp.:
20.4 °C
Key result
Type:
relative density
Remarks:
Mean of assay 2
Density:
2.581
Temp.:
20.1 °C

Assay No. 1

Test item sample weight (ME): 3.9710 g

Reference volume (VA): 79.444 cm³

Volume of sample cell holder (VC): 27.678 cm³

Temperature during the assay: 20.4°C

Data

 

P2

(PSIG)

P3

(PSIG)

VP

(cm3)

Density

(g/cm3)

Relative

density

Mean relative

density

Run No. 1

17.194

4.257

1.5365

2.5845

2.5846

2.586 ± 0.002

Run No. 2

17.056

4.223

1.5351

2.5868

2.5869

Run No. 3

17.193

4.257

1.5344

2.5879

2.5880

 

Assay No. 2

Test item sample weight (ME): 3.8948 g

Reference volume (VA): 79.444 cm³

Volume of sample cell holder (VC): 27.678 cm³

Temperature during the assay: 20.1°C

Data

 

P2

(PSIG)

P3

(PSIG)

VP

(cm3)

Density

(g/cm3)

Relative

density

Mean relative

density

Run No. 1

17.035

4.221

1.5087

2.5815

2.5816

2.581 ± 0.001

Run No. 2

17.023

4.218

1.5089

2.5811

2.5812

Run No. 3

17.092

4.235

1.5097

2.5798

2.5798

 

Conclusions:
Under the conditions of the test the mean relative density of the test material was 2.584 ± 0.003 at 20.3°C.
Executive summary:

The relative density of the test material was assessed according to OECD Test Guideline 109 and EU Method A.3 using a gas pycnometer.

Two series each of three measurements on the same test material sample were performed. The sample cell was weighed, filled with at least two thirds of the test material and reweighed. The samples weight was then determined by difference. The measurements were done after purging. The density in grams per cm³, and relative density were calculated.

The mean relative density from the three runs in Assay 1 was 2.856 ± 0.002 at 20.4°C.

The mean relative density from the three runs in Assay 2 was 2.851 ± 0.001 at 20.1°C.

The mean relative density of the test material was 2.584 ± 0.003 at 20.3°C.

Description of key information

The mean relative density of the test material was 2.584 ± 0.003 at 20.3 °C.

Key value for chemical safety assessment

Relative density at 20C:
2.584

Additional information

The relative density of the test material was assessed according to OECD Test Guideline 109 and EU Method A.3 using a gas pycnometer.

Two series each of three measurements on the same test material sample were performed. The sample cell was weighed, filled with at least two thirds of the test material and reweighed. The samples weight was then determined by difference. The measurements were done after purging. The density in grams per cm³, and relative density were calculated.

The mean relative density from the three runs in Assay 1 was 2.856 ± 0.002 at 20.4°C.

The mean relative density from the three runs in Assay 2 was 2.851 ± 0.001 at 20.1°C.

The mean relative density of the test material was 2.584 ± 0.003 at 20.3 °C.