Betaine jerin amphoteric surfactants ne amphoteric surfactants dauke da karfi alkaline N atom.Su ne ainihin gishiri tsaka tsaki tare da kewayon isoelectric fadi.Suna nuna halayen dipole a cikin kewayon da yawa.Akwai shaidu da yawa da ke nuna cewa betaine surfactants suna wanzuwa ta hanyar gishirin ciki.Saboda haka, wani lokaci ana kiran shi quaternary ammonium na ciki gishiri surfactant.Dangane da mabambantan cibiyoyin caji mara kyau, betaine surfactants da aka ruwaito a cikin binciken na yanzu ana iya raba su zuwa carboxyl betaine, sulfonic betaine, phosphoric betaine, da sauransu.

Betaine jerin amphoteric surfactants gishiri ne tsaka tsaki tare da faffadan kewayon isoelectric.Suna nuna halayen dipole a cikin kewayon pH mai faɗi.Saboda kasancewar quaternary ammonium nitrogen a cikin kwayoyin halitta, yawancin betaine surfactants suna da kyakkyawan kwanciyar hankali na sinadarai a cikin kafofin watsa labarai na acidic da alkaline.Muddin kwayoyin ba su ƙunshi ƙungiyoyi masu aiki kamar ether bond da ester bond ba, gabaɗaya yana da kyakkyawan juriya na iskar shaka.

Betaine jerin amphoteric surfactants suna da sauƙin narkewa a cikin ruwa, a cikin ma'auni na acid da tushe, har ma a cikin madaidaicin mafita na gishirin inorganic.Ba su da sauƙin yin aiki tare da ƙananan ƙarfe na ƙasa na alkaline da sauran ions na ƙarfe.Dogon sarkar betaine yana da sauƙin narkewa a cikin matsakaicin ruwa kuma pH bai shafe shi ba.Yawan sinadarin carbon atom yana shafar narkewar betain.Matsakaicin lauramide propyl betaine sx-lab30 da aka narkar da shi a cikin matsakaiciyar ruwa na iya kaiwa kashi 35%, amma iya narkewar homologues tare da dogon sarƙoƙin carbon yana da ƙasa sosai.

Ƙaƙƙarfan juriya na ruwa na surfactants yana bayyana a cikin juriya ga calcium da magnesium hard ions da ikon rarraba su zuwa sabulun calcium.Yawancin betaine amphoteric surfactants suna nuna kwanciyar hankali sosai ga ions calcium da magnesium.Zaman lafiyar calcium ion mafi yawan sulfobetaine amphoteric surfactants ya tsaya tsayin daka, yayin da ƙimar kwanciyar hankali na calcium ion mahadi na amine na biyu ya fi ƙasa da ƙasa.

Betaine jerin amphoteric surfactants suna da wadatar kumfa.Bayan hade tare da anionic surfactants, kwayoyin suna yin hulɗa sosai.Tasirin kumfa da magance yana ƙaruwa sosai.Haka kuma, abubuwan kumfa na gwoza gwoza surfactants ba su shafar taurin ruwa da PH na matsakaici.Ana amfani da su azaman masu yin kumfa ko masu kumfa, kuma ana iya amfani dasu a cikin kewayon PH.