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Diss Factsheets

Physical & Chemical properties

Density

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental starting date: 03 January 2017 Experimental completion date: 23 March 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 (incl. QA statement)
Type of method:
air comparison pycnometer (for solids)
Specific details on test material used for the study:
Identification: 4-tert-butylcyclohexyl methacrylate
(CAS 46729-07-1)
Appearance/physical state: clear colourless liquid (on melting)
Batch: DAR-16030
Purity: 89.2%
Expiry / retest date: 01 August 2018
Storage conditions: approximately 4 °C, in the dark
Key result
Type:
relative density
Density:
0.967
Temp.:
20 °C

Calibration

The pressure readings and the calculated volume for the reference and sample cells are shown in the following table:

Determination

P1
(psig)

P2
(psig)

P3
(psig)

P4
(psig)

Reference Cell Volume (cm3)

Sample Cell Volume (cm3)

1

17.187

6.504

17.246

8.536

90.910

149.322

2

17.140

6.490

17.203

8.517

91.056

149.422

3

17.166

6.502

17.172

8.505

91.068

149.362

Mean reference cell volume   :          91.011 cm3
Mean sample cell volume       :          149.369 cm3

As the reference cell volume and sample cell volume were within the defined tolerance (90.953 ± 1.0 cm3and 149.225 ± 1.0 cm3for the reference and sample cell volumes respectively) the gas comparison pycnometer was therefore considered acceptable for use.

 Sample

The pressure readingsandcalculated volumes obtained for theempty vessel and the combined volume of the vessels containingtest item are shown in the following tables:

Empty Vessels

Determination

Test

P1(sample)
(psig)

P2(sample)

(psig)

Volume (cm3)

Mean Volume (cm3)

1

A

17.061

6.873

14.460

14.474

B

17.115

6.896

14.501

C

17.138

6.904

14.460

2

A

17.187

6.944

15.119

15.156

B

17.069

6.899

15.206

C

17.148

6.929

15.144

 

Vessels Containing Test Item

Determination

Test

P1(sample)
(psig)

P2(sample)

(psig)

Volume (cm3)

Mean Volume (cm3)

1

A

17.113

8.663

60.595

60.612

B

17.130

8.673

60.624

C

17.113

8.664

60.616

2

A

17.151

8.510

56.956

56.997

B

17.219

8.547

57.026

C

17.148

8.511

57.010

The calculated test item volumes and density values are shown in the following table:

Determination

Volume of Test Item (cm3)

Mass of Test Item
(g)

Density

(kg/m3)

1

46.138

44.6660

968.1

2

41.841

40.4126

965.9

Mean density             :          967 kg/m3
Relative density         :          0.967
Temperature               :          20.0 ± 0.5 °C

Conclusions:
The density of the test item has been determined to be 967 kg/m3 at 20.0 ± 0.5 °C; relative density: 0.967.
Executive summary:

Density. 967 kg/m3 at 20.0± 0.5 °C, using a gas comparison pycnometer 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.

Description of key information

measured density is 0.967 g/cm3 @ 20 oC

Key value for chemical safety assessment

Relative density at 20C:
0.967

Additional information