Tetra-n-butylammonium bromide (TBAB) wani nau'ingishirin ammonium na quaternarymahaɗi tare da aikace-aikace da suka shafi fannoni da yawa:
1. Haɗakar halitta
TBABana amfani da shi sau da yawa azamanmai kara kuzari na canja wurin lokacidon haɓaka canja wurin da canza abubuwan da ke haifar da amsawa a cikin tsarin amsawar matakai biyu (kamar matakan halittu na ruwa), kamar a cikin halayen maye gurbin nucleophilic, shirye-shiryen hydrocarbon na halogenated, etherification, da halayen esterification, waɗanda zasu iya ƙara yawan amfani da kuma rage lokacin amsawa.

2. Injin lantarki
Ana amfani da shi a fannin kera batura, a matsayin ƙarin sinadarin electrolyte, yana iya haɓaka aikin lantarki, musamman a binciken batirin lithium-ion, yana nuna yuwuwar amfani.
3. Kera magunguna
Ƙarfinsa na kashe ƙwayoyin cuta ya sa ya zama muhimmin kayan aiki don shirya magungunan kashe ƙwayoyin cuta, yayin da yake ƙarfafa muhimman matakai a cikin haɗa magunguna kamar samar da carbon nitrogen da haɗin carbon oxygen.
4. Kare Muhalli
Ana amfani da shi a cikin yanayin maganin ruwa ta hanyar tasirin sakin ions na ƙarfe mai nauyi a hankali, don cire ko dawo da gurɓatattun ƙarfe masu nauyi a cikin jikin ruwa.
5. Samar da sinadarai
Ana amfani da shi a fannin sinadarai masu kyau don haɗa launuka, ƙamshi, da kayan polymer, kuma yana shiga cikin alkylation, acylation, da sauran halayen.