Diss Factsheets

Physical & Chemical properties

Density

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Reference
Endpoint:
density, other
Remarks:
density
Type of information:
experimental 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:
0.966 g/cm³
Temp.:
20 °C
Remarks on result:
other: at 965.0 hPa.

 S. No. Method Details Observed Values 1stObservation 2ndObservation 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) 20oC 20oC 5. Atmospheric pressure (hPa) 964.8 hPa 965.2 hPa 6. Weight of empty dry pyknometer(X) g 29.056 29.429 7. Weight of pyknometer + test item(Y) g 77.234 77.425 8. Apparent mass of test item(M1) (M1= Y - X)g 48.178 47.996 9. Weight of pyknometer + water(Z) g 78.852 78.999 10 Apparentmass of water (M2) (M2 = Z - X) g 49.796 49.57 11 Buoyancycorrection (A) A = (*ρat × M2) 0.0581 0.0578 12 Density ofwater** at testtemperature g/cm³ (ρtw) 0.9982 0.9982

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

CALCULATIONS:

FOR LIQUIDS

Density = (M1+A)/ (M2+A) X ρtw

 1st calculated density 2nd calculated density 48.2361____________ X 0.9982 =   0.9658 g/cm³49.8541 48.0538____________ X 0.9982 = 0.9665 g/cm³49.6278 Average density = 0.9661 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 0.9661 g/cm³ at 20°C and 965.0 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 0.9661 g/cm³ at 20°C and 965.0 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 0.9661 g/cm³ at 20°C and 965.0 hPa.

Key value for chemical safety assessment

Relative density at 20C:
0.966