The word emulsifiers is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 19
Highest Scoring Words With Friends™ Play In The Letters emulsifiers
:
Seven Letter Word Alert: (33 words)
filmier, filmise, fissile, fissure, fuelers, furless, fussier, leisure, messier, misfile, misfire, misfuel, misrule, missile, misuser, mueslis, refiles, refilms, reflies, refuels, refuses, reifies, reissue, reliefs, resumes, rimless, rumless, selfies, similes, slimier, smilers, smilier, surmise