Soap yog ib lo lus dav dav rau Fatty Acid Hlau ntsev.
Apr 05, 2022
Soap yog ib lo lus dav dav rau fatty acid hlau ntsev. Cov mis mos yog RCOOM, qhov twg RCOO yog fatty acid radical, thiab M yog hlau ion. Cov roj carbon ntau ntawm cov roj ntsha hauv cov xab npum niaj hnub feem ntau yog 10-18, cov hlau feem ntau yog cov hlau alkali xws li sodium los yog potassium, thiab ammonia thiab qee cov organic hauv paus xws li ethanolamine thiab triethanolamine kuj siv los ua cov xab npum tshwj xeeb. Hauv kev txiav txim siab dav, fatty acids ntsev tau los ntawm saponification lossis neutralization ntawm cov roj, waxes, rosin lossis fatty acids nrog alkalis tuaj yeem hu ua xab npum. Cov xab npum yog soluble hauv dej thiab muaj cov nyhuv ntawm kev ntxuav thiab decontamination. Muaj ntau hom xab npum, tseem hu ua xab npum tso quav, xab npum hlau thiab xab npum sib xyaw.
Soap yog ib lo lus dav dav rau fatty acid hlau ntsev. Cov roj carbon naj npawb ntawm fatty acids hauv cov xab npum niaj hnub feem ntau yog 10-18. Cov hlau feem ntau yog alkali hlau xws li sodium los yog potassium. Lawv kuj tau ua los ntawm ammonia thiab qee cov organic hauv paus xws li ethanolamine thiab triethanolamine rau cov hom phiaj tshwj xeeb. xab npum. Cov xab npum muaj xws li xab npum ntxhua khaub ncaws, xab npum ntxhua khaub ncaws, xab npum hlau, xab npum ua kua, thiab lwm yam khoom siv fatty acid, hardened oil, glycerin, thiab lwm yam.
Cov khoom xyaw ntawm xab npum: sodium ntsev R-CO2Na ntawm carboxylic acid, hluavtaws colouring, hluavtaws fragrance, preservative, antioxidant, foaming agent, hardener, viscous agent, hluavtaws surfactant.
Lub ntsiab tseem ceeb ntawm xab npum yog R-CO2Na, (sodium stearate (C17H35COONa)), nyob rau hauv uas R pawg feem ntau sib txawv thiab yog ntau pawg hydrocarbon. R- yog ib pawg hydrophobic, thiab pawg carboxyl yog pawg hydrophilic. Hauv cov dej tawv, xab npum thiab Ca2 ntxiv, Mg2 ntxiv, thiab lwm yam tsim cov khoom zoo li curd, fatty acid calcium ntsev, thiab lwm yam, uas feem ntau hu ua "calcium soaps" thiab dhau los ua cov khoom siv tsis zoo. Ntxiv cov softeners rau cov dej tawv tshem tawm cov dej tawv ions, cia cov xab npum ua haujlwm. Cov tshuaj xab npum yog feem ntau nyob rau hauv uas muaj qee cov tshuaj tua kab mob ntxiv. Cov tshuaj tsw qab yog ntxiv rau xab npum. Cov xab npum muaj zog degreasing vim nws cov xab npum hauv paus.