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Density

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Reference
Endpoint:
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)
Principles of method if other than guideline:
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 determini ng 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.
GLP compliance:
no
Type of method:
other: IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision)
Type:
density
Density:
1.123 g/cm³
Temp.:
20 °C

Method Details

Observed Values

1st

Observation

2nd

Observation

 

Test

temperature

(°C)

 

20°C

20°C

Atmospheric

pressure

(hPa)

978.3

977.3

Weight of

empty dry

pyknometer(X)

g

29.433

29.263

Weight of

pyknometer +

test item(Y)

g

85.358

84.953

Apparent

mass of test

item(M1)

(M1 = Y - X)g

55.925

55.690

Weight of

pyknometer +

water(Z)

g

79.119

78.756

Apparent

mass of water

(M2)

(M2 = Z - X)g

49.686

49.493

Buoyancy

correction (A)

A = (*ρat × M2)

0.058

0.057

Density of

water** at test

temperature

g/cm³ (ρtw)

0.9982

0.9982

Conclusions:
The density of test item 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 item was determined to be 1.123 g/cm³ at 20°C and 977.8 hPa.
Executive summary:

The density of test item 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 item was determined to be 1.123 g/cm³ at 20°C and 977.8 hPa.

Description of key information

The mean density of test item was determine to be 1.123 g/cm³ at 20°C and 977.8 hPa.

Key value for chemical safety assessment

Relative density at 20C:
1.123

Additional information

The density of test item 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 item was determine to be 1.123 g/cm³ at 20°C and 977.8 hPa.

Based on the data from other supporting studies from various reliable sources such as authoritative databases and handbooks, the density of test chemical was determined to be in the range of 1.12 to 1.138 g/cm3 at 15 to 25 °C. Thus, for the purpose of chemical safety assessment we will consider the key study value which is reported as 1.123 g/cm3 at 20°C and 977.8 hPa.