The word sulphuretted 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: 21
Highest Scoring Words With Friends™ Play In The Letters sulphuretted
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Seven Letter Word Alert: (46 words)
deputes, duelers, eluders, erupted, helpers, hurdles, hurtled, hurtles, hustled, letters, pelters, perused, pestled, petrels, plusher, prelude, pretest, pursued, pustule, putters, repulse, reputed, respelt, rustled, settled, settler, shelter, shutter, shuttle, slurped, sphered, spurted, sputter, strudel, sulphur, supered, sutured, tethers, thruput, trestle, trusted, trustee, turtles, ushered, usurped, uttered