Editorial board: Martha Merrill

The Density of Some Common Liquids 
Liquid 
Temperature 
Density 

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INNOVATION IN THE MODERN EDUCATION SYSTEM
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Acetaldehyde 
18° C 
783 kg/m
3
Acetic Acid 
25° C 
1049 kg/m
3
Acetone 
25° C 
784.6 kg/m
3
Beer (varies) 
10° C 
1010 kg/m
3
Benzaldehyde 
25° C 
1040 kg/m
3
Camelina oil 
15° C 
924 kg/m
3
Cashew nut oil 
15° C 
914 kg/m
3
Castor oil 
25° C 
952 kg/m
3
Methane 
-164° C 
465 kg/m
3
Peanut oil 
20° C 
914 kg/m
3
Pentane 
20° C 
626 kg/m
3
Table-1: Density of some common liquids 
Application of Density of Liquids 

There are several uses for liquid density, such as floatation, as well as 
sinking. Sinking plus floating of an item on top of a liquid relies on its relative 
density. E.g., submarines & ships. Although these are composed of iron, 
which has a higher density than H2OH2O, containers loaded with air are 
built alongside them. These containers are known as ballast containers, and 
by adjusting the air in them, the submarine may float on the top of the sea. 
For underwater explorations, the air in these containers is removed, making 
the submarine bulkier, thus allowing it to go to a chosen level. 

Oil spill clean-up- Because oil has a lower density, it hovers on the top 
of the H2OH2O. This density differential characteristic aids in the clean-up of 
oil spills. 

Purity criteria and the identification of unfamiliar liquids-When an 
impurity is introduced, the density varies. The type of impurity influences this 
shift. Its purity may be determined by correlating sample densities to 
standard values. Unknown fluids are similarly recognized by analysing their 
densities as well as comparing them to the reference densities.