Surfactant bụ ụdị ogige. Ọ nwere ike belata esemokwu elu nke dị n'etiti mmiri abụọ, n'etiti gas na mmiri mmiri, ma ọ bụ n'etiti mmiri mmiri na ihe siri ike. N'ihi ya, àgwà ya na-eme ka ọ baa uru dị ka ihe ncha, mmiri mmiri, emulsifiers, foaming agents, na dispersants.

Surfactants bụ n'ozuzu organic amphiphilic ụmụ irighiri ihe na hydrophilic na hydrophobic otu, na-emekarị amphiphilic organic ogige, nwere hydrophobic otu ("ọdụ") na hydrophilic otu ("isi"). Ya mere, ha bụ soluble na organic solvents na mmiri.

Nhazi nke Surfactant
(1) Anionic surfactant
(2) Cationic surfactant
(3) Zwitterionic surfactant
(4) Nonionic surfactant