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Diss Factsheets

Physical & Chemical properties

Density

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Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2002-05-23 - 2002-05-28
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
EEC Directive 92/69, A.3
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
air comparison pycnometer (for solids)
Specific details on test material used for the study:
- Storage condition of test material: at room temperature (at about 20 °C)
- Treatment of test material prior to testing: the test item was dried in a desiccator over silica gel for 113 hours before use
Key result
Type:
relative density
Density:
1.434 other: D20/4
Temp.:
20 °C

The density of the test item 1,3-Dimethyl-4-aminouracil was determined to be 1.434 g/cm3 (= 1.434 • 103 kg/m3) at 20.0 °C using a gas comparison pycnometer.

Conclusions:
The GLP study was performed according to the EEC Directive 92/69, Part A, Methods for the determination of physico-chemical properties, A.3 "Relative density" and the OECD Guideline for Testing of Chemicals, No. 109, "Density of Liquids and Solids" using a gas comparison pycnometer. The relative density of 1,3-Dimethyl-4-aminouracil was determined to be D20/4 = 1.434.
Executive summary:

The GLP study was performed according to the EEC Directive 92/69, Part A, Methods for the determination of physico-chemical properties, A.3 "Relative density" and the OECD Guideline for Testing of Chemicals, No. 109, "Density of Liquids and Solids" using a gas comparison pycnometer.

The determination of the relative density of the test item was performed at a temperature of 20.0 °C.

The calibration procedure was performed in triplicate.

The determination of the relative density of the test item was performed with two independent test item samples each at least measured in triplicate.

The tabulated values in the Tables above represent rounded results, which were obtained by calculation using the exact raw data.

The density of the test item 1,3-Dimethyl-4-aminouracil was determined to be 1.434 g/cm3 (= 1.434 • 103 kg/m3) at 20.0 °C using a gas comparison pycnometer.

In conclusion, the relative density of 1,3-Dimethyl-4-aminouracil was determined to be 1.434.

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP-guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
GLP compliance:
yes (incl. QA statement)
Type of method:
pycnometer method
Key result
Type:
relative density
Density:
1.453
Temp.:
20 °C
Remarks on result:
other: D20/4

Description of key information

Density

Relative density: 1.453 (D20/4, pycnometer method, OECD 109, GLP)

Relative density: 1.453 (D20/4, air comparison pycnometer (for solids), OECD 109, GLP)

Key value for chemical safety assessment

Relative density at 20C:
1.453

Additional information