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Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2014-01-28
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The study was conducted according to OECD/EU guideline, and under GLP. No deviation was reported. Test substance is adequately specified with purity. Therefore full validation applies.
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. certificate)
Remarks:
inspected on June 3 to 5, 2013 / signed on November 5, 2013
Type of method:
pycnometer method
Dynamic viscosity of test material:
no data
Key result
Type:
relative density
Density:
0.949
Temp.:
20 °C
Type:
density
Density:
0.949 g/cm³
Temp.:
20 °C

Table 4.4/1: Density of the Test Item

Replicate

No. 1

No. 2

No. 3

VP

25.1606

25.2173

24.9656

mP

20.4629

20.7439

20.2979

mPTI

44.3430

44.6714

43.9995

TP

20.0

20.0

20.0

pTI

0.9491

0.9489

0.9494

Mean value (g/cm3)

0.9491

CV (%)

0.02

 

VP = Volume of the calibrated pycnometer [cm3]

mp = Mass of the empty pycnometer [g]

mPTI = Mass of the pycnometer filled with test item [g]

TP = Temperature of the pycnometer at point of measurement [C]

pTI = Density of the test item [g/cm3]

CV = Coefficient of variation [%]

The relative density D20 4 of the test item was calculated to be 0.9491.

 

Validity Criteria

The temperatures at moments of weighing were kept constant within 20.0 ± 0.1 °C. 

The coefficient of variation of the three replicate measurements was < 2 %. No outlier was ascertained.

Conclusions:
The substance is less dense than water.
Executive summary:

The relative density of the test substance was measured under GLP according OECD 109 / EU A3 guideline, pycnometer method. The sample was measured in triplicate at 20 °C, and the mean relative density was calculated.

The relative density D20 4 of the test substance has been determined to be 0.9491.

Description of key information

The substance is less dense than water.

Key value for chemical safety assessment

Relative density at 20C:
0.949

Additional information

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