4.3.3 Storage of Reactive Metals

Last updated at July 13, 2026 by

What is Storage of Reactive Metals?

It is the special method of keeping highly reactive metals away from air and water to prevent unwanted reactions .

Key Facts and Examples
  • Sodium metal is stored in kerosene oil for safety.
Example: Sodium kept under kerosene in laboratory bottles
  • Reactive metals react vigorously with oxygen and water in air.
Example: Sodium catches fire when exposed to moist air
  • Kerosene oil prevents contact with air and moisture .
Example: Oil layer acts as protective barrier around sodium
  • Phosphorus is stored in water to prevent catching fire .
Example: White phosphorus kept under water in containers
Storage Methods for Reactive Elements Metals (in oil) Non-metals (in water) Sodium - kerosene oil White phosphorus - water Potassium - kerosene oil Red phosphorus - dry place Lithium - mineral oil Yellow phosphorus - water

Section Summary: Effect of Air and Water on Other Metals

Effect of Air and Water on Other Metals Magnesium Reaction Burns with white flame, forms oxide Basic Metal Oxides Turn red litmus blue, pH > 7 Reactive Metal Storage Sodium in kerosene, phosphorus in water
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