1. Matswai a ammonium a quaternary ke metsoako e entsoeng ka ho nkela liathomo tsohle tse 'ne tsa haedrojene sebaka ka li-ion tsa ammonium ka lihlopha tsa alkyl.

Ke cationic surfactant e nang le thepa e ntle ea ho bolaea libaktheria, 'me karolo e sebetsang ea ts'ebetso ea tsona ea ho bolaea libaktheria ke sehlopha sa cationic se thehiloeng ke motsoako oa metso ea tlhaho le liathomo tsa naetrojene.
2. Ho tloha ka 1935, ha Majeremane a sibolla phello ea ho bolaea libaktheria ea alkyl dimethyl ammonium gasification, a ile a e sebelisa ho phekola junifomo ea sesole ho thibela tšoaetso ea maqeba. Phuputso mabapi le lisebelisoa tsa antibacterial tsa letsoai la quaternary ammonium esale e le ntho e tsepamisitsoeng tlhokomelong ea bafuputsi. Lisebelisoa tsa antibacterial tse lokisitsoeng ka letsoai la quaternary ammonium li na le thepa e ntle ea antibacterial 'me li ka sebelisoa haholo masimong a mangata a kang meriana, kalafo ea metsi le lijo.
3. Mesebetsi ea matsoai a ammonium a quaternary e kenyelletsa:

Li-fungicide tsa temo, li-sesebelisoa tsa ho bolaea likokoana-hloko tsa libaka tsa sechaba, li-sesebelisoa tsa ho bolaea likokoana-hloko tsa metsing a potolohang, li-sesebelisoa tsa ho rua litlhapi, li-sesebelisoa tsa bongaka, li-sesebelisoa tsa liphoofolo le tsa likhoho tsa lapeng, li-sesebelisoa tsa ho bolaea likokoanyana tsa red tide, li-sesebelisoa tsa algae tse putsoa-tala, le masimo a mang a ho bolaea likokoana-hloko le ho li bolaea. Haholo-holo matsoai a ammonium a Gemini a na le litlamorao tse ikhethang tsa ho bolaea likokoana-hloko le litšenyehelo tse tlase ka kakaretso.

Tetrabutylammonium bromide (TBAB), e tsejoang hape e le tetrabutylammonium bromide.

Ke letsoai la tlhaho le nang le foromo ea limolek'hule C ₁₆ H₃₆BrN.

Sehlahisoa se hloekileng ke kristale e tšoeu kapa phofo, e nang le monko o monate le monko o ikhethang. E tsitsitse mochesong oa kamore le khatellong ea sepakapaka. E qhibiliha ka metsing, joala le asene, e qhibiliha hanyane ka benzene.

Ce sebediswa feela e le mokedikedi wa tlhahiso ya dintho tse phelang, khathatso ya phetiso ya mokgahlelo, le reagent ya para ya ion.