Density of OilDensity of Oil

Properties Contributing to the Density of Oil


Oil has been known to have a less density that usually amount to 0.8 gram per cubic centimetre. And, this has been one of the basic elements that we use in our everyday living. However, the density of oil is greatly affected by its very own chemical and physical characteristics or properties. And these properties result to a very low density of oil. Here are some of them and their contributions to the density of oil:


Specific Gravity of Oil 

The density of oil is always a comparison of its specific gravity with that of the water. Since the oil has an SG of less than 1.0 then it will float on water, and most of the types of oil floats. But if it has an SG of more than 1.0 then it will sink in the water.


API Gravity

API simply stands for American Petroleum Institute and it is inversely proportional to the density of oil. This means that a high density corresponds to a low API gravity. Below 40 API gravity is already considered to be heavy. The API gravity of oil ranges from 40+- 60 while water has 10.


Surface Tension

If you drop oil on top of any liquid element such as water, the tendency of the oil will be that it will float. Why? The water’s surface tension is high.

These are only some of the physical properties that contribute to the low density of oil and have an effect to some of its chemical characteristics as well. Knowing the properties or factors resulting to the density of oil will also help you in situations where an oil spill has occurred in certain bodies of water because you will know how to control or manage the whole situation. With these facts, you will be able to avoid this from happening too.