what are quaternary ammonium salts?

how do you synthesise them?

how do you get alkene by heating them?(mechanism)

Dear student,

Quaternary ammonium cations, also known as quats, are positively charged polyatomic ions of the structure NR₄⁺, R being an alkyl or aryl  group . Unlike the  (NH₄⁺) and the primary, secondary, or tertiary ammonium cations, the quaternary ammonium cations are permanently charged, independent of the pHof their solution. Quaternary ammonium salts or quaternary ammonium compounds (called quaternary amines in oilfield parlance) are salts of quaternary ammonium cations with an anion.

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