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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:
from 12-Jun-2018 to 19-Jun-2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
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
GLP compliance:
yes (incl. certificate)
Type of method:
pycnometer method
Type:
relative density
Density:
1.418 g/cm³
Temp.:
20 °C
Conclusions:
Using the pycnometer method, a density of

1.4180 ± 0.0026 g/cm3 at 20.0 ± 0.3 °C

was measured. This value is the mean of two independent determinations with the maxi-mum error of a single determination.
Standard deviation was 0.0079 g/cm3, showing acceptable correlation of the two determinations.
Executive summary:

The density of the test item Naphthalene-1,5-diol was calculated as 1.4180 ± 0.0026 g/cm3at 20.0°C ± 0.3 °C, which is the mean of two values.Precision of the value is given as maximal error of a single determination.

Standard deviation was 0.0079 g/cm3, showing acceptable correlation of the two determinations.

Therefore, the study is considered valid.

Description of key information

Using the pycnometer method, a density of

1.4180±0.0026 g/cm3at 20.0±0.3 °C

was measured. This value is the mean of two independent determinations with the maximum error of a single determination.

Key value for chemical safety assessment

Relative density at 20C:
1.418

Additional information