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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:
2015-08-28
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
no
Type of method:
pycnometer method
Type:
relative density
Density:
ca. 1.666 other: dimensionless
Temp.:
20 °C

Absolute density of a substance (δ) is calculated as:

δ subs = WS / V subs = WS / (V pyc – V hex ) = WS / (V pyc – WH2 / δ Hex ) = WS / (V pyc – WH 2 * V pyc / WH1 ) Relative density (D204) is calculated as: δ subs / 0.999973

1st test 2nd test Media
WP1 41.7126 g 41.9722 g
WHP 74.4168 g 74.691 g
WH1 32.7042 g 32.7188 g
δHex 0.654 g/cm^3 0.654 g/cm^3 0.654 g/cm^3
Vol Pic 50.00 cm^3 50.00 cm^3
WP2 41.7133 g 41.9731 g
WSP 46.7958 g 47.0858 g
WS 5.0825 g 5.1127 g
WSH 35.7946 g 35.8192 g
WH2 30.7121 g 30.7065 g
Vhex 46.9544 cm^3 46.9249 cm^3
Vsubs 3.0456 cm^3 3.0751 cm^3
δsubs 1.669 g/cm^3 1.663 g/cm^3 1.666 g/cm^3
Relative Density (δ20/4) 1.666
Standard deviation 0.0044
Relative standard deviation 0.26
Conclusions:
Relative density: 1.666 at 20 °C.
Executive summary:

Method

Relative density was determined by means of pycnometer method as per recommendations of OECD 109. Density was calculated from the difference in weight between the full and empty pycnometer and its volume.

Result

Relative density: 1.666 at 20 °C.

Description of key information

The relative density of the test substance was determined to be 1.666.

Key value for chemical safety assessment

Relative density at 20C:
1.666

Additional information

Relative density was determined by means of pycnometer method as per recommendations of OECD 109. Density was calculated from the difference in weight between the full and empty pycnometer and its volume. The relative density was determined to be 1.666 at 20 °C.