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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:
13 November 2017 - 15 December 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
The study was conducted according to an internationally recognised method. Test substance is adequately characterised. Therefore full validation applies.
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
2012
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
2008
Deviations:
no
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. certificate)
Remarks:
Inspected on 13 and 14 October 2014/ Signed on 8 April 2015
Type of method:
pycnometer method
Key result
Type:
relative density
Density:
1.091 other: no dimension
Temp.:
20 °C

All measured values are given in the following table:

First Determination

 

 

 

 

 

Weighing #

m1

m2

m3

m4

m5

Item

Pycn. empty

Pycn.+ H2O

Pycn. + repl.liq.

Pycn. + test item

Pycn. + test item + repl. liq.

Mass in g

38.0029

88.3649

88.3754

46.3071

89.0906

Temperature in °C

19.8

20.0

20.0

20.0

19.8

Second Determination

 

 

 

 

 

Weighing #

m1

m2

m3

m4

m5

Item

Pycn. empty

Pycn.+ H2O

Pycn. + repl.liq.

Pycn. + test item

Pycn. + test item + repl. liq.

Mass in g

38.0038

88.3681

88.3765

46.7819

89.1144

Temperature in °C

20.0

20.2

20.0

20.0

19.6

The following values were calculated:

First Determination

 

 

Error rel.

Error abs.

Temperature

20.0

 °C

 

0.1

Density of water

0.998203

g/cm3

2.00%

0.0002

Volume of Pycnometer

50.4527

cm3

 

 

Density of Replacement Liquid

0.9984

g/cm3

 

 

Density of Test Item

1.0925

g/cm3

0.0254%

0.0003

Second Determination

 

 

Error rel.

Error abs.

Temperature

20.2

 °C

 

0.1

Density of water

0.998203

g/cm3

2.00%

0.0002

Volume of Pycnometer

50.4550

cm3

 

 

Density of Replacement Liquid

0.9984

g/cm3

 

 

Density of Test Item

1.0900

g/cm3

0.0241%

0.0003

Results - mean value:

Parameter

Value

Unit

Standard Deviation

Relative Standard Deviation

Volume of Pycnometer

50.45

cm3

0.0016

0.00 %

Density of Test Item

1.0912

g/cm3

0.0018

0.16 %

Density of Test Item

1091.2

kg/m3

1.8

0.16 %

Relative Density of Test Item

1.0912

 

0.0018

0.16 %

The density of the test item was calculated as 1.0912 ± 0.0003 g/cm3at 20.0 ± 0.4°C with the maximum error of a single determination.

Conclusions:
The density of the test item was calculated as 1.0912 ± 0.0003 g/cm3 at 20.0 ± 0.4 °C with the maximum error of a single determination.
Standard deviation was 0.0018 g/cm3, showing good correlation of the two determinations.
Executive summary:

The study was performed in order to determine the density of test item according to OECD 109, resp. EU A.3 guideline, using a pycnometer.

The density of the test item was calculated as 1.0912 ± 0.0003 g/cm3 at 20.0 ± 0.4 °C.

Description of key information

Using the pycnometer method, a density of 1.0912 ± 0.0003 g/cm3 at 20 ± 0.4 °C was measured. This value is the mean of two independent determinations.

Key value for chemical safety assessment

Relative density at 20C:
1.091

Additional information

A fully reliable experimental study, conducted according to OECD 109 /EU A3 guideline, using pycnometer, is available. It is considered as a key study, and the result is retained as key data.