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Strong Bases List

What Are the Strong Bases?


Space-filling model of sodium hydroxide.

Sodium hydroxide is also known as lye or caustic soda. Its molecular formula is NaOH.

Ben Mills

Strong bases are bases which completely dissociate in water into the cation and OH- (hydroxide ion). The hydroxides of the Group I and Group II metals usually are considered to be strong bases. Here is a list of the most common strong bases.

  • LiOH - lithium hydroxide
  • NaOH - sodium hydroxide
  • KOH - potassium hydroxide
  • RbOH - rubidium hydroxide
  • CsOH - cesium hydroxide
  • *Ca(OH)2 - calcium hydroxide
  • *Sr(OH)2 - strontium hydroxide
  • *Ba(OH)2 - barium hydroxide
* These bases completely dissociate in solutions of 0.01 M or less. The other bases make solutions of 1.0 M and are 100% dissociated at that concentration. There are other strong bases than those listed, but they are not often encountered.

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