Hydroxyethyl Cellulose (HEC) yog ib qho cellulose ether uas muaj ntau yam siv tau uas ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua tau zoo ntawm cov ntaub ntawv siv hauv kev tsim kho, cov tshuaj ntxuav, thiab lwm yam khoom lag luam. Tsab xov xwm no tshawb nrhiav txog cov yam ntxwv tseem ceeb, qhov zoo, thiab ntau yam kev siv ntawm HEC, hais txog nws qhov tseem ceeb hauv kev txhim kho viscosity, kev khaws dej, thiab kev ruaj khov ntawm cov khoom.