Amphoteric surfactants usoro Betaine bụ amphoteric surfactants nwere atọm N alkaline siri ike. Ha bụ nnu na-anọpụ iche n'ezie nwere oke isoelectric sara mbara. Ha na-egosi njirimara dipole n'ọtụtụ ebe. E nwere ọtụtụ ihe akaebe na betaine surfactants dị n'ụdị nnu dị n'ime. Ya mere, a na-akpọ ya mgbe ụfọdụ quaternary ammonium internal salt surfactant. Dịka ndị na-ebu chaj center na-adịghị mma si kwuo, enwere ike kewaa betaine surfactants akọpụtara na nyocha ugbu a ka ọ bụrụ carboxyl betaine, sulfonic betaine, phosphoric betaine, wdg.

Amphoteric surfactants nke usoro Betaine bụ nnu na-anọpụ iche nwere oke isoelectric sara mbara. Ha na-egosi njirimara dipole na oke pH sara mbara. N'ihi na quaternary ammonium nitrogen dị na molekul, ọtụtụ betaine surfactants nwere ezigbo nkwụsi ike kemịkalụ na acidic na alkaline media. Ọ bụrụhaala na molekul ahụ enweghị otu ọrụ dịka ether bond na ester bond, ọ na-enwekarị ezigbo iguzogide oxidation.

A na-agbaze ihe ndị na-eme ka mmiri dị n'ime Betaine n'ime mmiri, n'ime asịd na ntọala, nakwa n'ime mmiri nnu ndị na-adịghị n'ime ya. Ha adịghị mfe iji ihe ndị dị n'ime ala alkaline na ion ígwè ndị ọzọ mee ihe. Betaine dị ogologo dị mfe ịgbaze n'ime mmiri, pH anaghịkwa emetụta ya. Ọnụọgụ atọm carbon na-emetụtakarị otú betaine si agbaze. Ọnụọgụ nke lauramide propyl betaine sx-lab30 a gbazere n'ime mmiri nwere ike iru 35%, mana otú ha si agbaze n'ime mmiri nwere ogologo carbon chain dị obere.

A na-ahụta ike siri ike nke surfactants n'ime mmiri site n'ịnagide calcium na magnesium ion siri ike na ike ha na-agbasa na ncha calcium. Ọtụtụ betaine amphoteric surfactants na-egosi ezigbo nkwụsi ike na calcium na magnesium ion. Nkwụsi ike calcium ion nke ọtụtụ sulfobetaine amphoteric surfactants kwụsiri ike, ebe uru calcium ion nke calcium nke ihe ndị mejupụtara amine nke abụọ dị ala karịa.

Amphoteric surfactants nke usoro Betaine bara ụba na ụfụfụ. Mgbe ejikọtara ya na anionic surfactants, molekul ndị ahụ na-emekọrịta ihe nke ọma. Mmetụta nke ụfụfụ na ihe mgbochi na-abawanye nke ukwuu. Ọzọkwa, ike nke mmiri na PH nke ihe na-eme ka mmiri sie ike anaghị emetụta àgwà ụfụfụ nke beet beet surfactants. A na-eji ha dị ka ihe na-eme ka ụfụfụ ma ọ bụ ihe na-eme ka ụfụfụ dị, a pụkwara iji ha mee ihe na ọtụtụ PH.