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Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From November 20 to December 07, 2007
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. No deviation affected the quality of the study. The substance is considered to be adequately characterised with its purity. Therefore full validation applies.
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. QA statement)
Remarks:
UK GLP Compliance Programme (inspected on August 21, 2007/ signed on October 15, 2007)
Type of method:
air comparison pycnometer (for solids)
Key result
Type:
density
Density:
1 350 kg/m³
Temp.:
21.6 °C
Remarks on result:
other: accuracy ± 0.5 °C
Type:
relative density
Remarks:
D21.6/4
Density:
1.35 other: relative density is unitless
Temp.:
21.6 °C

Table 4.4/1: Density – results

 

Determination

P1

P2

Volume (cm3)

Density (kg/m3)

A

17.055

6.997

18.5

1.37 x 103

B

17.066

6.990

18.1

1.34 x 103

 

Temperature: 21.6 ± 0.5 °C

Mean density: 1.35 x 103 kg/m3

Conclusions:
Much denser than water.
Executive summary:

The density of the test substance was measured under GLP according OECD 109, gas comparison pycnometer method. After calibration, two independant samples were measured in duplicate, and the mean density was calculated.

The density of test substance has been determined to be 1350 kg/m3 at 21.6 ± 0.5 °C.

Description of key information

The substance is much denser than water.

Key value for chemical safety assessment

Relative density at 20C:
1.35

Additional information

A fully reliable experimental study, conducted according to a recognized OECD method and under GLP, is available. Therefore it is considered as a key study, and the result is retained as key data.