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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:
09 June 2017 to 11 August 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
other: gas comparison pycnometer
Key result
Type:
relative density
Density:
1.08 other: dimensionless
Temp.:
20 °C

CALIBRATION

- Pressure readings are shown in Table 6 (below) together with the calculated volume for the reference and sample cells.

- As the reference cell volume and sample cell volume were within the defined tolerance (90.953 ± 1.0 cm3 and 149.225 ± 1.0 cm3 for the reference and sample cell volumes respectively) the gas comparison pycnometer was therefore considered acceptable for use.

 

TABLE 6 – PRESSURE READINGS AND CALCULATED VOLUMES

Determination

P1 (psig)

P2 (psig)

P3 (psig)

P4 (psig)

Reference cell volume (cm3)

Sample cell volume (cm3)

1

17.523

6.646

17.358

8.606

91.274

149.382

2

17.409

6.597

17.373

8.613

90.951

149.063

3

17.292

6.552

17.278

8.565

90.943

149.074

Mean reference cell volume: 91.056 cm3

Mean sample cell volume: 149.173 cm3

 

SAMPLE

- The pressure readings, calculated volumes and density values obtained for the test item are shown in Table 7 (below).

 

TABLE 7 – PRESSURE READINGS, CALCULATED VOLUMES AND DENSITY VALUES FOR THE TEST ITEM

Determination

Replicate

P1 (sample) (psig)

P2 (sample) (psig)

Volume (cm3)

Density kg/m3)

1

A

17.248

7.659

35.2

1.08 x 103

1

B

17.118

7.608

35.4

1.08 x 103

1

C

17.245

7.664

35.3

1.08 x 103

2

A

17.193

7.654

35.7

1.08 x 103

2

B

17.333

7.723

35.9

1.08 x 103

2

C

17.406

7.754

35.8

1.08 x 103

Mean density: 1.08 x 10E03 kg/m3

Relative density 1.08

Temperature 20.0 ± 1.0 °C

Conclusions:
The density of the test item was determined to be 1.08 x 10E03 kg/m3 at 20.0 ± 1.0 °C and the relative density was reported as 1.08.
Executive summary:

GUIDELINE

The determination was carried out with a gas comparison pycnometer, using a procedure designed to be compatible with Method A.3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 109 of the OECD Guidelines for Testing of Chemicals, 02 October 2012.

 

RESULTS

The density of the test item was determined to be 1.08 x 10E03 kg/m3 at 20.0 ± 1.0 °C and the relative density was reported as 1.08.

Description of key information

The density of the test item was determined to be 1.08 x 10E03 kg/m3 at 20.0 ± 1.0 °C and the relative density was reported as 1.08 (OECD 109 and EU Method A.3).

Key value for chemical safety assessment

Relative density at 20C:
1.08

Additional information

GUIDELINE

The determination was carried out with a gas comparison pycnometer, using a procedure designed to be compatible with Method A.3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 109 of the OECD Guidelines for Testing of Chemicals, 02 October 2012.

 

RESULTS

The density of the test item was determined to be 1.08 x 10E03 kg/m3 at 20.0 ± 1.0 °C and the relative density was reported as 1.08.