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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:
Experimental test result performed using standard test guidelines
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
GLP compliance:
no
Type of method:
pycnometer method
Key result
Type:
density
Density:
1.18 g/cm³
Temp.:
20 °C
OBSERVATIONS

The mean density of liquid test chemical is determined by recording weights of empty pycnometer and apparent weight of test chemical and water at required test temperature of 20 °C with respective atmospheric pressure. The density is calculated using Buoyancy correction value. The readings are taken in replicate and mean density is reported.











































































Sr NoMethod DetailsObserved Values
1st Observation2nd Observation
1Test temperature(°C)2020
2Atmospheric pressure(hPa)970.4967.9
3Weight of empty dry pycnometer(X)g29.30329.789
4Weight of pycnometer + test chemical (Y)g88.39888.648
5Apparent mass of test chemical (M1)(M1 = Y - X) 59.09558.859
6Weight of pycnometer +  water (Z)g79.11979.533
7Apparent mass  of water (M2)(M2  = Z - X) g49.81649.744
8Buoyancy correction (A)A = (*ρat × M2)0.0580.058
9

Density of water at test temperature


g/cm3 (ρtw)0.99820.9982

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

 

CALCULATIONS


For liquids:

Density = (M1+A)   X   ρtw

                   (M2+A)

 

1st calculated density =( 59.095+0.058)  X   0.9982

                                     ( 49.816+0.058)

 =1.18 g/cm3

2ndcalculated density = (58.859+0.058)  X   0.9982

                                     (49.744+0.058)

 =1.18 g/cm3

Average density = (1.183913955167+1.1808953335207)  /   2

 

















1st calculated density


2ndcalculated density


1.183913955167


1.1808953335207


Average density


=1.18 g/cm3


 

Where,

M1 = Apparent mass of test chemical

M2 = Apparent mass of water

A = Buoyancy correction (0.001168 g/cm3, when density of air at 27°C and 760 mm Hg pressure)

 ρtw = Density of water at test temperature

 


 
Conclusions:
The study was conducted in accordance with OECD guideline for the Testing of Chemicals no. 109; Density of Liquid and Solids, Adopted: 2 October 2012 and Method adapted from IS 4730:1994 (Reaffirmed 2003) Method for determination of Density of Liquids.
The mean density of  was determined to be1.18 g/cm3 at 20 °C and 969.15 hPa.
Executive summary:
A study was performed to determine the density of  in respective atmospheric pressure and temperature conditions.

The study was conducted in accordance with OECD guideline for the Testing of Chemicals no. 109; Density of Liquid and Solids, Adopted: 2 October 2012 and Method adapted from IS 4730:1994 (Reaffirmed 2003) Method for determination of Density of Liquids.

The mean density of  was determined to be1.18 g/cm3 at 20 °C and 969.15 hPa.

Description of key information

The study was conducted in accordance with OECD guideline for the Testing of Chemicals no. 109; Density of Liquid and Solids, Adopted: 2 October 2012 and Method adapted from IS 4730:1994 (Reaffirmed 2003) Method for determination of Density of Liquids.

The mean density of  was determined to be1.18 g/cm3 at 20 °C and 969.15 hPa.

Key value for chemical safety assessment

Relative density at 20C:
1.18

Additional information

A study was performed to determine the density of  in respective atmospheric pressure and temperature conditions.

The study was conducted in accordance with OECD guideline for the Testing of Chemicals no. 109; Density of Liquid and Solids, Adopted: 2 October 2012 and Method adapted from IS 4730:1994 (Reaffirmed 2003) Method for determination of Density of Liquids.

The mean density of  was determined to be1.18 g/cm3 at 20 °C and 969.15 hPa.