Hydrocarbons, C10-C13, n-alkanes, isoalkanes,

Density

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 December 2013; Experimental Completion Date: 10 March 2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive, done to a valid guideline and the study was conducted under GLP conditions.

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:

density

Density:

750 kg/m³

Temp.:

20.2 °C

Key result

Type:

relative density

Density:

0.75 g/cm³

Temp.:

20.2 °C

Results

Results of duplicate determinations of density are shown in the following table:

Table 3.4

 

Measurement	Determination
	1	2
Mass of pycnometer (g)	17.0620	17.5869
Mass of pycnometer and distilled water at 20.2ºC (g)	27.2282	27.7623
Mass of pycnometer and test item at 20.2ºC (g)	24.7022	25.2385
Density of water at 20.2ºC (kg/m^3)	998.16	998.16
Density (kg/m^3)	750.15	750.59
Relative density	0.75017	0.75061

 

Mean density:                        750 kg/m³
Temperature:                          20.2 ± 0.5ºC
Mean relative density             0.750

Conclusions:

Please see the Executive Summary for the Conclusion.

Executive summary:

The determination was carried out using the pycnometer method, designed to be compatible with Method A3 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.

Conclusion

The density of the test item has been determined to be 750 kg/m³ at 20.2 ± 0.5°C, relative density 0.75.

Description of key information

The relative density of the substance at 20.2 ± 0.5°C was 0.75.

Key value for chemical safety assessment

Relative density at 20C:

0.75

Additional information

A measured relative density value of 0.75 at 20.2 ± 0.5°C (density = 750 kg/m³ at 20.2 ± 0.5°C) was determined for the substance using pycnometer method in accordance with OECD 109 and in compliance with GLP. The result is considered to be reliable.