4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]diphenol; bisphenol AF

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

09 August 2017 - 20 November 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Study was conducted in accordance with international guidelines and in accordance with GLP. All guideline validity criteria were met.

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

Regulation (EC) 440/2008 of 30 May 2008

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

02 October 2012

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

air comparison pycnometer (for solids)

Dynamic viscosity of test material:

Not applicable. The test item is a solid, viscosity need only be considered for liquid test items.

Key result

Type:

relative density

Remarks:

Mean Relative Density

Density:

1.573 other: Dimensionless quantity.

Temp.:

20 °C

Type:

relative density

Remarks:

Measurement 1

Density:

1.57 other: Dimensionless quantity.

Temp.:

20 °C

Type:

relative density

Remarks:

Measurement 2

Density:

1.575 other: Dimensionless quantity.

Temp.:

20 °C

The density of the test item determined two times with individually prepared samples. Since the relative deviation between two measurements was ≤ 0.5 % the quality criteria of the measurement were fulfilled. The data, the mean of the densities, and its relative deviation are presented in Table 2 and Table 3.

 

 

Table 2:          Mass of the Test Item

Sample No.	Mass of empty vessel	Mass of vessel and test item	Mass of test item
	[g]	[g]	[g]
1	6.5625	12.0801	5.5176
2	6.5619	12.1822	5.6203

 

 

Table 3:          Density of the Test Item

Sample No.	Measured sample volume	Test Item Weight	Temperature	Density	Relative Density
	[cm^3]	[g]	[°C]	[g/cm^3]	[-]
1	3.51488	5.5176	20.0	1.5698	1.5698
2	3.56770	5.6203	20.0	1.5753	1.5753
mean:			20.0	1.5726	1.5726
absolute deviation:			0.0	0.0055	0.0055
relative deviation [%]:			0.0	0.35	0.35

 

 

The mean relative density (D²⁰₄) of the test item was determined to be 1.5726 relating to the nominal density of water at 4 °C (0.999972 g/cm³).     

Conclusions:

The mean relative density of the test item was determined to be 1.5726 at 20 °C.

Executive summary:

EU Method A.3. – The relative density of the test item was determined utilising an air comparison pycnometer.  The procedure employed was designed to be compatible with Method A.3. Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008.

Two determinations were carried out.  An instrumentation check was performed by measuring of the volume of the reference sphere.  Aliquots of test item (5.5 – 5.6 g) were placed in the measuring cell.  The density of the test item was determined.  This determination was performed twice at 20.0 °C ± 0.2 °C to acquire an average value.

The relative density (D₄²⁰) of the test item was calculated to be 1.5726, based on the ratio of the measured density of the test item relative to the density of water at 4 °C.

Description of key information

Relative Density: D²⁰₄ = 1.5726; EU Method A.3.; C Bär (2017)

Key value for chemical safety assessment

Relative density at 20C:

1.573

Additional information

EU Method A.3. – The relative density of the test item was determined utilising an air comparison pycnometer.  The procedure employed was designed to be compatible with Method A.3. Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008.

Two determinations were carried out.  An instrumentation check was performed by measuring of the volume of the reference sphere.  Aliquots of test item (5.5 – 5.6 g) were placed in the measuring cell.  The density of the test item was determined.  This determination was performed twice at 20.0 °C ± 0.2 °C to acquire an average value.

The relative density (D₄²⁰) of the test item was calculated to be 1.5726, based on the ratio of the measured density of the test item relative to the density of water at 4 °C.