Strong Bases

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.