Esters tuaj yeem rov qab mus rau hauv carboxylic acid thiab cawv los ntawm cov tshuaj tiv thaiv nrog dej thiab lub hauv paus. Cov tshuaj tiv thaiv hu ua saponification los ntawm Latin sapo uas txhais tau tias xab npum.
Dab tsi yog cov khoom lag luam thaum tus ester dhau saponification?
Saponification piav qhia txog kev tawg ntawm ester. Qhov no yields cawv thiab carboxylic acid.
hom tshuaj tiv thaiv dab tsi yog saponification?
1.3 Saponification. Saponification tuaj yeem txhais tau tias yog "dej tshuaj tiv thaiv qhov twg dawb hydroxide rhuav tshem cov ester bonds ntawm fatty acids thiab glycerol ntawm triglyceride, uas ua rau muaj cov roj fatty acids thiab glycerol, "uas yog txhua yam soluble hauv aqueous solutions.
Koj ua li cas Hydrolyse ib ester?
Ib qho tshuaj tiv thaiv yog hydrolysis, lus "splitting nrog dej." Lub hydrolysis ntawm esters yog catalyzed los ntawm ib tug acid los yog ib tug puag. Acid hydrolysis tsuas yog rov qab ntawm esterification. Cov ester yog rhuab nrog ib tug loj tshaj ntawm cov dej uas muaj ib tug muaj zog-acid catalyst.
Yuav ua li cas yog qhov kev txiav txim ntawm saponification ntawm ester?
Basics: Lub saponification ntawm ib qho ester feem ntau tshwm sim raws li qhov sib npaug ntawm cov tshuaj tiv thaiv: AB + C → A + BC.(1) Nyob rau hauv cov ntaub ntawv ntawm methyl acetate: CH3COOH3 + OH− → CH3COO− + CH3OH. … −-ion concentration rau b rau hauv kab zauv.