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Diss Factsheets

Physical & Chemical properties

Density

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Reference
Endpoint:
density, other
Remarks:
Density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Qualifier:
according to guideline
Guideline:
other: method adapted from ASTM D 854-02
GLP compliance:
no
Type of method:
pycnometer method
Key result
Type:
density
Density:
1.312 g/cm³
Temp.:
20 °C
Remarks on result:
other: at 971.4 hPa pressure

TEST ITEM DESCRIPTION AND RESULTS

FOR LIQUIDS:

By Pyknometer Method:

 

1

Guideline

OECD 109

1st

Reading

2nd Reading

 

 

2

Method

Adapted from ASTM D854-02

 

 

3

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.

 

 

4

Test temperature 

(°C)

20.0°C

20.0°C

5

Atmospheric

pressure

( hPa)

972.5

970.3

6

Density of water at

test temperature;

g/cm³ (ρtw)

 

0.9982

0.9982

7

Weight of empty dry Pyknometer(Wp)

                                    g

29.267

29.263

8

Weight of pyknometer filled with water (WA)

 

78.762

79.018

9

Weight of pyknometer + test item (WPS)

g

34.244

34.052

10

Weight of pyknometer +test Item+ water (WB)

 

79.688

80.388

*ρat=density of air at 27°C and 760 mm Hg pressure=0.001168 g/cm³

**Density of water referred from the Table 1 of the was method.

CALCULATIONS:

FOR SOLIDS: By Pyknometer:

 

Calculated values

1st Calculation

2nd Calculation

Wo = WPS-WP

4.9770

4.7890

(WA-WB)

-0.9260

-1.3700

Specific Gravity = WO/[WO + (WA-WB)]

1.2285

1.4007

Specific Gravity; Gs

1.2285

1.4007

Density (g/cm³)

1.2262

1.3981

Mean Density (g/cm³)

1.3122
Conclusions:
The mean density of the test chemical was determined to be 1.3122 g/cm³ at 20°C and 971.4 hPa.
Executive summary:

The density of test chemical was determined following OECD Guideline 109 and according to the Adapted from ASTM D854-02 using pyknometer. The mean density of the test chemical was determined to be 1.3122 g/cm³ at 20°C and 971.4 hPa.

Description of key information

The density of test chemical was determined following OECD Guideline 109 and according to the Adapted from ASTM D854-02 using pyknometer. The mean density of the test chemical was determined to be 1.3122 g/cm³ at 20°C and 971.4 hPa.

Key value for chemical safety assessment

Relative density at 20C:
1.312

Additional information

The density of test chemical was determined following OECD Guideline 109 and according to the Adapted from ASTM D854-02 using pyknometer. The mean density of the test chemical was determined to be 1.3122 g/cm³ at 20°C and 971.4 hPa.