Hydroxyethyl cellulose （HEC） is a non-ionic cellulose ether produced by a series of etherification reactions from cellulose， a natural polymer material.. This product is odorless， odorless， non-toxic white powder or particle， which can be dissolved in cold water to produce a fully transparent viscous aqueous solution， and will not be harmed by PH value. It has thickening， adhesion， dispersion， emulsion， demulsification， floatation， adsorption， surface activity， water solubility and salt resistance. It is applicable to architectural coatings， engineering construction， textiles， daily chemical products， paper industry， crude oil exploration and other fields.