## Diss Factsheets

Physical & Chemical properties

## Density

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### Link to relevant study record(s)

##### Reference
Endpoint:
bulk density
Remarks:
density
Type of information:
experimental study
key study
Study period:
20/8/2016 - 20/8/2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard OECD test guideline.
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Principles of method if other than guideline:
The density of test item is determined by using pyknometer. It is the ratio of mass of the unit volume of test item at a stated temperature to mass of the same volume of gas free distilled water at a stated temperature.
GLP compliance:
no
Type of method:
pycnometer method
Key result
Type:
density
Density:
1.553 g/cm³
Temp.:
20 °C
Remarks on result:
other: Pressure = 964.5 hPa

OBSERVATIONS :

 Method Details Observations Remarks if, any Guideline OECD 109 1stReading 2nd Reading Method Adapted from ASTM D854-02 Principle of method The density of test item is determined by using pyknometer. It is the ratio of mass of the unit volume of test item at a stated temperature to mass of the same volume of gas free distilled water at a stated temperature. Test temperature (°C) - 20 20 Density of water at test temperature; g/cm3(ρtw) 0.9982 0.9982 Atmospheric pressure (in hPa) - 964.4 964.6 Weight of empty dry pyknometer (Wp) 30.955 29.234 Weight of pyknometer filled with water (WA) 81.354 78.747 Weight of pyknometer + test Item (WPS) 35.980 34.274 Weight of pyknometer +test Item+ water (WB) 83.164 80.539

CALCULATIONS:

 Calculated values 1st Calculation 2nd Calculation Wo=WPS-WP 5.025 5.040 (WA-WB) -1.810 -1.792 Specific Gravity = WO/[WO+ (WA-WB)] 5.025/[5.025-1.810] 5.040/[5.040-1.792] Specific Gravity; Gs 1.562 1.551 Density (g/cm3) 1.562 × 0.9982 =1.559 1.551 × 0.9982 =1.548 Mean Density (g/cm3) 1.553 g/cm3
Conclusions:
The mean density of the test chemical was determined to be 1.553 g/cm3 at 20° C and 964.5 hPa.
Executive summary:

The density of test chemical was determined following OECD guideline 109 and according to the method adapted from ASTMD 854-02. The mean density of the test chemical was determined to be 1.553 g/cm3 at 20° C and 964.5 hPa.

### Description of key information

The density of test chemical was determined following OECD guideline 109 and according to the method adapted from ASTMD 854-02. The mean density of the test chemical was determined to be 1.553 g/cm3 at 20° C and 964.5 hPa.

### Key value for chemical safety assessment

Relative density at 20C:
1.553