ʻO ka Sodium Stearate no ka Anionic Surfactant a me nā Kopa

ʻO ka sodium stearate ka paʻakai sodium o ka waikona stearic, i ʻike ʻia ʻo ka sodium octadecate, kahi mea hoʻohana maʻamau anionic surfactant a me ka mea nui o nā kopa. ʻO ka ʻāpana hydrocarbyl i loko o ka molekala sodium stearate he hui hydrophobic, a ʻo ka moiety carboxyl he hui hydrophilic. I ka wai kopa, aia ka sodium stearate i nā micelles. He poepoe na micelles a ua haku ia me na mole. Aia nā pūʻulu hydrophobic i loko a ua hui pū ʻia me nā pūʻali van der Waals, a ʻo nā pūʻulu hydrophilic i waho a māhele ʻia ma ka ʻili o nā micelles. Hoʻopuehu ʻia nā micelles i ka wai, a i ka wā e ʻike ai i nā ʻaila ʻaila hiki ʻole ke hoʻoheheʻe ʻia i ka wai, hiki ke hoʻopuehu ʻia ka ʻaila i loko o nā kulu aila maikaʻi. ʻO ka hui hydrophobic o ka sodium stearate e hoʻoheheʻe ʻia i loko o ka ʻaila, aʻo ka hui hydrophilic Hoʻokuʻu ʻia i ka wai no ka decontamination. I loko o ka wai paʻakikī, hui pū nā ion stearate me nā ion calcium a me ka magnesium e hana i nā paʻakai calcium a me nā paʻakai magnesium hiki ʻole i ka wai, e hōʻemi ana i ka detergency. Ma waho aʻe o ka sodium stearate, loaʻa pū ka kopa i ka sodium palmitate CH3(CH2)14COONa a me nā paʻakai sodium o nā mea momona ʻē aʻe (C12-C20).