Crossword clues for Useful oxide. 6 letters:YTTRIAOxide used in television tubesYTTRIAOxide used in picture tubesPOTASHUseful oxide.POTASHOxide using in fertilizer, soap, etc.YTTRIAOxide of element 39, used in TV tubesMAGNESIAOxide used as an antacidLIMEOxide used in cement and mortar.CHROMIC___ oxide, used in metallurgyREDLEADBright colored oxide used in some paint pigments
