Superbase
In chemistry, a super base is an extremely strong base. How strong a base must be to qualify as a "super base " is not clearly defined - often sodium hydroxide is used as a benchmark (and therefore a super base would be a base that is stronger than sodium hydroxide), as frequently as for the definition of the superacid the sulfuric acid is used as a benchmark.
Since sodium hydroxide already applies with a pKa of ~ 14 as a strong base in the handling of super bases unconditional caution, since even brief contact with the skin can cause irreparable damage ( especially since superbases often anhydrous and undiluted are used ).
There are three main classes into which it divides superbases: organic super bases, organometallic and inorganic bases Super Super bases (which typically salts with highly charged anions ).
Examples of superbases
- Organic Super Bases are proton sponges such as Naphthalene 1,8-bis (dimethylamino).
- An example of an inorganic base is super lithium nitride.
- Other examples of (organic ) Super bases are alcoholates ( pK a * value ~ 26) and lithium diisopropylamide ( LDA, pK a * value 35-40 ).