1. Quaternary ammonium ntsev yog cov tebchaw tsim los ntawm kev hloov tag nrho plaub hydrogen atoms hauv ammonium ions nrog alkyl pawg.

Lawv yog cov cationic surfactant nrog cov khoom zoo bactericidal, thiab qhov zoo ntawm lawv cov kab mob bactericidal yog pawg cationic tsim los ntawm kev sib xyaw ntawm cov hauv paus hniav thiab nitrogen atoms.
2. Txij li thaum xyoo 1935, thaum cov neeg German nrhiav pom cov kab mob bactericidal ntawm alkyl dimethyl ammonium gasification, lawv tau siv nws los kho cov khaub ncaws tub rog los tiv thaiv qhov txhab mob. Kev tshawb fawb ntawm quaternary ammonium ntsev cov khoom siv tshuaj tua kab mob yeej ib txwm ua rau cov kws tshawb fawb saib xyuas. Cov khoom siv tshuaj tua kab mob uas npaj nrog quaternary ammonium ntsev muaj cov tshuaj tua kab mob zoo thiab tuaj yeem siv dav hauv ntau yam xws li tshuaj, dej kho, thiab zaub mov.
3. Cov dej num ntawm quaternary ammonium ntsev muaj xws li:

Kev ua liaj ua teb fungicides, tshuaj tua kab mob rau pej xeem, tshuaj tua kab mob hauv dej, tshuaj tua kab mob hauv dej, tshuaj tua kab mob, tsiaj txhu thiab qaib tsev tshuaj tua kab mob, tshuaj tua kab mob dej liab, tshuaj tua kab xiav-ntsuab algae, thiab lwm yam kev ua kom tsis muaj menyuam thiab tshuaj tua kab mob. Tshwj xeeb tshaj yog Gemini quaternary ammonium ntsev muaj cov kab mob bactericidal zoo heev thiab cov nqi qis tag nrho.

Tetrabutylammonium bromide (TBAB), tseem hu ua tetrabutylammonium bromide.

Nws yog cov organic ntsev nrog cov mis molecular C ₁₆ H₃₆BrN.

Cov khoom ntshiab yog dawb siv lead ua los yog hmoov, nrog deliquescence thiab ib tug tshwj xeeb tsw. Nws ruaj khov ntawm chav tsev kub thiab atmospheric siab. Soluble hauv dej, cawv, thiab acetone, me ntsis soluble hauv benzene.

Commonly siv los ua ib qho nruab nrab hauv cov organic synthesis, theem hloov catalyst, thiab ion khub reagent.