Phenolyog ib tug compound uas muaj benzene nplhaib thiab ib pawg hydroxyl.Hauv chemistry, cawv txhais tau tias yog cov khoom sib txuas uas muaj cov pab pawg hydroxyl thiab cov saw hlau hydrocarbon.Yog li ntawd, raws li lub ntsiab lus no, phenol tsis yog cawv.

Txawm li cas los xij, yog tias peb saib cov qauv ntawm phenol, peb tuaj yeem pom tias nws muaj cov pab pawg hydroxyl.Qhov no txhais tau hais tias phenol muaj qee yam ntawm cov cawv.Txawm li cas los xij, phenol tus qauv txawv ntawm cov qauv ntawm lwm cov cawv vim nws muaj lub nplhaib benzene.Lub nplhaib benzene no muab phenol nws cov khoom tshwj xeeb thiab cov yam ntxwv uas txawv ntawm cov cawv.

Yog li, raws li cov yam ntxwv ntawm phenol thiab cawv, peb tuaj yeem hais tias phenol tsis yog cawv.Txawm li cas los xij, yog tias peb tsuas saib qhov tseeb tias phenol muaj cov pab pawg hydroxyl, ces nws muaj qee yam ntawm cov cawv.Yog li, lo lus teb rau lo lus nug "Puas yog phenol ib qho cawv?"tsis tuaj yeem yog yog lossis tsis yog.Nws nyob ntawm cov ntsiab lus thiab lub ntsiab lus ntawm cawv peb siv.