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Diss Factsheets

Physical & Chemical properties

Density

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Link to relevant study record(s)

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 OECD test guidelines
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Qualifier:
according to guideline
Guideline:
other: IS 4730 : 1994 (Reaffirmed 2010)
GLP compliance:
no
Type of method:
pycnometer method
Key result
Type:
density
Density:
1.106 g/cm³
Temp.:
20 °C
Remarks on result:
other: at 965.3 hPa

Method details

 

Observed values

 

1stObservation

2ndObservation

Guideline

OECD 109

 

 

Method

IS 4730 : 1994 (Reaffirmed 2010) –Method for Determination of Density

of Liquids (First Revision)

 

 

Principle of

Method

Determination of the mass at a given temperature of a volume of the material contained in a density bottle (pyknometer) and determination of the volume of the latter by

determining the mass of the

corresponding volume of water at the same temperature. The density is obtained by dividing the mass of material by its volume.

 

 

Test

temperature

(°C)

20°C

20°C

Atmospheric

pressure

(hPa)

965.9

964.8

Weight of

empty dry

pyknometer(X)

g

29.354

30.709

Weight of

pyknometer +

test item (Y)

g

83.974

85.761

Apparent

mass of test

item (M1)

(M1 = Y - X) g

54.62

55.052

Weight of

pyknometer +

water (Z)

g

78.185

80.879

Apparent

mass of water

(M2)

(M2 = Z - X) g

48.831

50.17

Buoyancy

correction (A)

A = (*ρat × M2)

0.0570

0.0570

Density of

water** at test

temperature

g/cm³ (ρtw)

0.9982

0.9982

*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 IS method.

 

CALCULATIONS:

Density = (M1+A/ (M2+A) ) X ρtw

1st calculated density

2nd calculated density

54.677

____________ X 0.9982 =  1.1164 g/cm³

48.888

55.1105

____________ X 0.9982 = 1.0952 g/cm³

50.2285

Average density

= 1.1058 g/cm³

 

Conclusions:
The density of test chemical was determined following OECD Guideline 109 and according to the IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer. The mean density of test chemical was determined to be 1.1058 g/cm³ at 20°C and 965.3 hPa.
Executive summary:

The density of test chemical was determined following OECD Guideline 109 and according to the IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer. The mean density of test chemical was determined to be 1.1058 g/cm³ at 20°C and 965.3 hPa.

Description of key information

On the basis of available data from study report,the density of test chemical was determined following OECD Guideline 109 and according to the IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer. The mean density of test chemical was determined to be 1.1058 g/cm³ at 20°C and 965.3 hPa.

Key value for chemical safety assessment

Relative density at 20C:
1.106

Additional information

On the basis of available data from study report,the density of test chemical was determined following OECD Guideline 109 and according to the IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer. The mean density of test chemical was determined to be 1.1058 g/cm³ at 20°C and 965.3 hPa.

In a supporting study from handbooks andauthoritative database, the density of test chemical was determined to be 1.0891 gm/cm3 at 25°C.

Additional study from secondary source indicates the density of test chemical as 1.106±0.06 gm/cm3 at 20°C and 1013.2499 Pa.

From the available data from secondary source, the density of test chemical was estimated to be 1.1±0.1 g/cm3.