give reason why sodium is stored in kerosene oil Give reasons why sodium and potassium are stored in kerosene?

Metal which is kept immersed in kerosene oil might seem like an unusual sight to some, but it serves a specific purpose. The practice of storing certain metals in kerosene oil is done to protect them from oxidation and other forms of corrosion.

Why is sodium kept under kerosene?

One example of a metal that is commonly stored under kerosene is sodium. Sodium is a highly reactive metal, which means that it readily reacts with other substances, including oxygen in the air. When exposed to air, sodium forms a dull, grayish coating of sodium oxide. This layer hinders the further reaction of sodium with oxygen, but it can easily be removed by water or moisture in the air.

Therefore, to prevent sodium from reacting with air, it is stored under kerosene, which acts as a protective layer. Kerosene is a non-polar solvent that does not react with sodium. By keeping sodium immersed in kerosene, it remains isolated from the air and does not come into contact with moisture, thereby preventing oxidation.

The use of kerosene as a protective agent for metals is not limited to sodium. It is also used for storing other alkali metals such as potassium, lithium, and rubidium. These metals are all highly reactive and pose similar corrosion risks.

Metal corrosion and the role of kerosene

Corrosion is a natural process that occurs when metals react with their environment. This chemical reaction causes deterioration and can weaken the structure and integrity of the metal. Exposure to air, moisture, and certain chemicals accelerates the corrosion process.

Kerosene, being an organic compound derived from crude oil, does not contain water or oxygen molecules that can react with metals. This absence of reactive elements makes it an ideal medium for storing metals. By keeping metals immersed in kerosene, they are effectively shielded from the surrounding environment, preventing the oxidation and corrosion process.

It is worth noting that the use of kerosene as a protective agent is not limited to storage purposes. It can also be utilized in certain industrial processes where metals need to be protected during various stages of manufacturing or transportation.

Furthermore, it is important to handle metals stored in kerosene with caution since they can be highly reactive when exposed to air or moisture. Protective gear, such as gloves and goggles, should be worn to ensure safety when working with these metals.

In conclusion, the practice of storing metals in kerosene serves as an effective means of protecting them from corrosion. Sodium, along with other highly reactive metals, is commonly kept under kerosene to prevent contact with air and moisture. This use of kerosene as a protective agent helps to maintain the integrity and prolong the lifespan of the stored metal specimens.

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