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Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

experimental dates: 27 March 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised. Therefore full validation applies.

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

02. Oct. 2012

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

Regulation (EC) No 440/2008 of 30. May 2008

Deviations:

no

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes (incl. QA statement)

Remarks:

Landesamt für Umwelt, Wasserwirtschaft und Gewerbeaufsicht (inspected on 13 & 14 October 2014, 2010 / signed on 08 April 2015)

Type of method:

pycnometer method

Specific details on test material used for the study:

Storage conditions of test material: The test item was stored in a metal bottle as received in the dark from the day of receipt till the 18. Jan. 2017 at 17.2 °C – 21.5 °C and was then stored in a closed vessel (original metal bottle) at 3.0 °C – 8.0 °C in the dark.

Dynamic viscosity of test material:

flowable (˂ 500 Pa.s)

Key result

Type:

density

Density:

0.865 g/cm³

Temp.:

20 °C

Type:

relative density

Density:

0.865 other: relative density is unitless

Temp.:

20 °C

Table 4.4/1: Calculated Values

 

First Determination			Error rel.	Error abs.
Temperature	20.0	°C		0.1
Density of water	0.998203	g/cm^3	2.00%	0.0002
Volume of Pycnometer	9.9335	cm^3
Density of Test Item	0.8649	g/cm^3	0.0130%	0.0001
Second Determination			Error rel.	Error abs.
Temperature	20.2	°C		0.1
Density of water	0.998203	g/cm^3	2.00%	0.0002
Volume of Pycnometer	9.9337	cm^3
Density of Test Item	0.8649	g/cm^3	0.0130%	0.0001

 

Table 4.4/2: Results of Single Determinations

 

Determination	Density in g/cm^3	Error of Determ. in g/cm^3
1	0.8649	0.0001
2	0.8649	0.0001

 

Table 4.4/3: Results – Mean Values

 

Parameter	Value	Unit	Standard Deviation	Relative Standard Deviation
Volume of Pycnometer	9.93	cm^3	0.0001	0.00 %
Density of Test Item	0.8649	g/cm^3	0.0000	0.00 %
Density of Test Item	864.9	kg/m^3	0.0	0.00 %
Relative Density of Test Item	0.8649		0.0000	0.00 %

Conclusions:

The substance is much less dense than water.

Executive summary:

The density of the test substance was measured under GLP according OECD 109 / EU A3 guideline, pycnometer method.

Experiment was performed at 20 °C in duplicate, and the mean density was calculated.

A density of 0.8649 ± 0.0001 g/cm³ at 20 ± 0.2 °C was measured. This value is the mean of two independent determinations with the maximum error of a single determination. Standard deviation was 0.0000 g/cm³, showing perfect correlation of the two determinations.

The relative density (D20/4) of the test substance was calculated to be 0.8649.

Description of key information

The substance is much less dense than water.

Key value for chemical safety assessment

Relative density at 20C:

0.865

Additional information

A fully reliable experimental study, conducted according to a recognized OECD/EC method and under GLP, is available. It is considered as a key study. The result is retained as key data.

Note that this parameter may show some variations, due to the UVCB nature of the substance.