Sodium reacts with moisture, it will eventually turn to sodium hydroxide from moisture in the air. It reacts violently with water.
Sodium must be stored in a non-oxidizing medium, such as a liquid hydrocarbon.
The pure metal must be stored under oil to protect it from oxygen and water vapor in the air.
Because it is highly reactive to water, even the humidity in the air can trigger a reaction
sodium must lose one electron
Kerosene is composed of saturated hydrocarbons, with which sodium and potassium do not react. They do react rapidly, however, with the water vapor and oxygen in air and therefore must be protected from it in order to remain in elemental form. The following excerpt from an earlier answer to this question, "[sodium] is unsaturated hydrocarbon . eventhough sodium is highly reactive it doesn't reacts with oxygen when Na++ is preserved in kerosene. hence," is wrong from beginning to end and should be ignored.
sodium must be kept under kerosene
Sodium must be stored in a non-oxidizing medium, such as a liquid hydrocarbon.
It is not necessary to store sodium chloride in an incubator. For laboratory use dried NaCl must be stored in an exsiccator.
Sodium chloride must be stored in tight sealed bottles.
Sodium hydroxide must be dissociated in water.
Phase at Room Temperature: SolidSince sodium can ignite on contact with water, it must be stored in a moisture free environment.
Sodium chloride must be stored in a sealed bottle, in a dry atmosphere to avoid water absorption.
Alkali meatls are stored in oil to stop it from mixing with the moisture in the air.Because Alkali metals are highly flammble in moist air.
The pure metal must be stored under oil to protect it from oxygen and water vapor in the air.
In a tightly sealed container, preferably one that doesn't have a lot of moisture in the air. The container should be a plastic container as glass container can react with sodium hydroxide and melt.
Because it is highly reactive to water, even the humidity in the air can trigger a reaction
Sodium chloride can be dried by heating at 115 0C, in a an oven, 1 hour; after this salt must be stored in an exsiccator.