Ma amphoteric surfactants a Betaine series ndi ma amphoteric surfactants okhala ndi ma atomu amphamvu a alkaline N. Ndi mchere wopanda mphamvu kwenikweni wokhala ndi ma isoelectric osiyanasiyana. Amawonetsa mawonekedwe a dipole mosiyanasiyana. Pali umboni wambiri wosonyeza kuti ma betaine surfactants alipo mu mawonekedwe a mchere wamkati. Chifukwa chake, nthawi zina amatchedwa quaternary ammonium internal salt surfactant. Malinga ndi zonyamula zosiyanasiyana za negative charge center, ma betaine surfactants omwe afotokozedwa mu kafukufuku waposachedwa amatha kugawidwa m'magulu awiri: carboxyl betaine, sulfonic betaine, phosphoric betaine, ndi zina zotero.

Ma surfactants a Betaine series amphoteric ndi mchere wopanda ndale wokhala ndi ma isoelectric osiyanasiyana. Amawonetsa mawonekedwe a dipole mu pH yochuluka. Chifukwa cha kukhalapo kwa quaternary ammonium nitrogen m'mamolekyulu, ma surfactants ambiri a betaine amakhala ndi kukhazikika kwa mankhwala mu acidic ndi alkaline media. Bola molekyuluyo ilibe magulu ogwira ntchito monga ether bond ndi ester bond, nthawi zambiri imakhala ndi kukana kwabwino kwa okosijeni.

Ma surfactants amphoteric amphoteric otsatizana ndi a Betaine ndi osavuta kusungunuka m'madzi, mu ma acid ndi ma base okhazikika, komanso ngakhale mu njira zosakanikirana za mchere wosapangidwa. Sizosavuta kuchita ndi zitsulo za alkaline earth ndi ma ayoni ena achitsulo. Unyolo wautali wa betaine ndi wosavuta kusungunuka mumadzi ndipo sukhudzidwa ndi pH. Kusungunuka kwa betaine kumakhudzidwa makamaka ndi kuchuluka kwa maatomu a kaboni. Kuchuluka kwa lauramide propyl betaine sx-lab30 komwe kumasungunuka mumadzi kumatha kufika 35%, koma kusungunuka kwa ma homologues okhala ndi unyolo wautali wa kaboni ndi kochepa kwambiri.

Kukana kwa madzi olimba kwa ma surfactants kumaonekera mu kupirira kwawo ma ayoni olimba a calcium ndi magnesium komanso mphamvu yawo yofalikira ku sopo wa calcium. Ma betaine amphoteric surfactants ambiri amasonyeza kukhazikika bwino kwa ma ayoni a calcium ndi magnesium. Kukhazikika kwa ma ayoni a calcium kwa ma surfactants ambiri a sulfobetaine amphoteric ndi kokhazikika, pomwe kukhazikika kwa ma ayoni a calcium kwa mankhwala ena a amine ndi kotsika kwambiri.

Ma surfactants amphoteric amphoteric ali ndi thovu lochuluka. Pambuyo pophatikizana ndi ma surfactants a anionic, mamolekyu amalumikizana mwamphamvu. Mphamvu ya thovu ndi kupondaponda imawonjezeka kwambiri. Kuphatikiza apo, mphamvu ya thovu ya ma surfactants a beet beet sikhudzidwa ndi kuuma kwa madzi ndi PH ya medium. Amagwiritsidwa ntchito ngati othandizira thovu kapena ma foam, ndipo angagwiritsidwe ntchito pamitundu yosiyanasiyana ya PH.