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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:

12 February to 06 March 2013

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 adequately identified. Therefore full validation applies.

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes (incl. QA statement)

Remarks:

11 April 2011

Type of method:

pycnometer method

Specific details on test material used for the study:

- Appearance: White powder
- Storage condition: Test item was stored in a closed vessel at room temperature away from light and humidity.

Dynamic viscosity of test material:

(not applicable, solid)

Type:

density

Density:

1.081 g/cm³

Temp.:

20 °C

Key result

Type:

relative density

Density:

1.081 other: relative density is dimensionless

Temp.:

20 °C

Results of the single determinations with the respective error as well as the mean value and its standard deviation are presented in the following tables:

 

Table 4.4/1: Results of Single Determinations

 

Determination	Density in g/cm^3	Error of Determination in g/cm^3
1	1.0807	0.0002
2	1.0807	0.0002

 

Table 4.4/2: Results - Mean Values

 

Parameter	Value	Standard Deviation	Relative Standard Deviation
Volume of Pycnometer	50.90 cm^3	0.0037	0.01 %
Density of Test Item	1.0807 g/cm^3	0.0000	0.00 %
Density of Test Item	1080.7 kg/m^3	0.0
Relative Density of Test Item	1.0807	0.0000

 

The density of the test item was calculated as 1.0807 ± 0.0002 g/cm³ at 20.0 ± 0.2 °C, which is the mean of two values. Precision of the value is given as maximal error of a single determination.

Both determinations yielded the same result, showing excellent correlation of the two determinations. Therefore, the study is considered valid.

Conclusions:

The substance is slightly more dense than water.

Executive summary:

The density of the test substance was determined under GLP according to OECD 109 and EU A3 guideline, using the pycnometer method, with replacement liquid as a solid.

 

Two independent determinations were performed and the mean value was retained.

 

The density of test substance has been determined to be1.0807 ± 0.0002 g/cm³ at 20.0 ± 0.2 °C.

Description of key information

The substance is slightly more dense than water.

Key value for chemical safety assessment

Relative density at 20C:

1.081

Additional information

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