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Density

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Reference
Endpoint:
density, other
Remarks:
density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
25-04-2017 – 25-04-2017
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:
OECD Guideline 109 (Density of Liquids and Solids)
Principles of method if other than guideline:
The density of Test item was determined following OECD guideline 109 and according to the method adapted from ASTM D 854-02.
GLP compliance:
no
Type of method:
pycnometer method
Key result
Type:
density
Density:
1.286 g/cm³
Temp.:
20 °C
Remarks on result:
other: 970.6 hPa.

Observation Table :

S. No.

Method Details

Observed Values

1stObservation

  2ndObservation

1.                   

Guideline

OECD 109

 

 

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)

20oC

20oC

5.                   

Atmospheric pressure

(hPa)

970.2hPa

971.1hPa

6.                   

Weight of empty dry pyknometer(X)

g

29.524  g

30.813g

7.                   

Weight of pyknometer + test item(Y)

g

  32.424 g

33.767g

8.                   

Weight of pyknometer + water(Z)

g

 78.955 g

  81.013 g

9.

  Weight of

pyknometer +test

Item+ water (WB)

g

 79.451

 81.811

CALCULATIONS:

FOR SOLIDS: By Pyknometer:

      Calculated values
   1st Calculation  2nd Calculation
 Wo=WPS-WP  2.9000  2.9540
 (WA-WB)
-0.4960 -0.7980

 Specific Gravity = WO/[WO +

(WA-WB)]

1.2063 

 1.3701

 Specific Gravity; Gs

 1.2063

 1.3701

 Density (g/cm³)

 1.2041

    1.3676

 Mean Density (g/cm³)

 1.2858    

Conclusions:
The density of Test item was determined following OECD guideline 109 and according to the method adapted from ASTM D 854-02. The mean density of the test item was determine to be 1.2858 g/cm³ at 20°C and 970.6 hPa.
Executive summary:

The density of Test item was determined following OECD guideline 109 and according to the method adapted from ASTM D 854-02. The mean density of the test item was determine to be 1.2858 g/cm³ at 20°C and 970.6 hPa.

Description of key information

The density of Test item was determined following OECD guideline 109 and according to the method adapted from ASTM D 854-02. The mean density of the test item was determine to be 1.2858 g/cm³ at 20°C and 970.6 hPa.

Key value for chemical safety assessment

Additional information

The density of Test item was determined following OECD guideline 109 and according to the method adapted from ASTM D 854-02. The mean density of the test item was determine to be 1.2858 g/cm³ at 20°C and 970.6 hPa.