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Diss Factsheets

Physical & Chemical properties

Density

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
density, other
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:
Data is from experimental study report
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Qualifier:
according to guideline
Guideline:
other: IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision)
GLP compliance:
no
Type of method:
pycnometer method
Key result
Type:
density
Density:
0.986 g/cm³
Temp.:
20 °C
Remarks on result:
other: At 965.4 hPa

Table 1:

Sr. No.

Method details

Observed value

1st

Observation

2nd

Observation

1

Guideline

OECD 109

 

 

2

Method

IS 4730 : 1994 (Reaffirmed 2010) –

Method for Determination of Density

of Liquids (First Revision)

 

 

3

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.

 

 

4

Test

temperature

(°C)

20 °C

20 °C

5

Atmospheric

pressure

hPa

966.4

964.4

6

Weight of

empty dry

pyknometer (X)

g

30.927

29.319

7

Weight of

pyknometer +

test item (Y)

g

79.622

78.423

8

Apparent

mass of test

item (M1)

(M1 = Y - X) g

48.695

49.104

9

Weight of

pyknometer +

water (Z)

g

80.458

78.819

10

Apparent

mass of water (M2)

(M2 = Z - X) g

49.531

49.5

11

Buoyancy

correction (A)

A = (*ρat × M2)

0.0578

0.0578

12

Density of

water** at test temperature

g/cm³ (ρtw)

0.9982

0.9982

FOR LIQUIDS:

Density = (M1+A) X ρtw (M2+A)

 

 1st calculated density

2nd calculated density 

 48.7528 / 49.5888  X 0.9982 = 0.9813 g/cm³ 

 49.1618/ 49.5578  X 0.9982 = 0.9902 g/cm³

 Average density

  = 0.9857 g/cm³
Conclusions:
The mean density of test chemical was determined to be 0.9857 g/cm³ at 20°C and 965.4 hPa.
Executive summary:

The density of test chemical was determined following OECD guideline 109 and according to the Indian standard method for determination of density of liquids [IS 4730:1994 (Reaffirmed 2010)]. The mean density of the test chemical was determined to be 0.9857 g/cm³ at 20°C and 965.4 hPa.

Description of key information

The density of test chemical was determined following OECD guideline 109 and according to the Indian standard method for determination of density of liquids [IS 4730:1994 (Reaffirmed 2010)]. The mean density of the test chemical was determined to be 0.9857 g/cm³ at 20°C and 965.4 hPa.

Key value for chemical safety assessment

Relative density at 20C:
0.986

Additional information

The density of test chemical was determined following OECD guideline 109 and according to the Indian standard method for determination of density of liquids [IS 4730:1994 (Reaffirmed 2010)]. The mean density of the test chemical was determined to be 0.9857 g/cm³ at 20°C and 965.4 hPa.

Based on available data from reliable handbook, the density of test chemical was determined to be 0.968 g/cm3.