effervescent magnesium sulfate

ef·fer·ves·cent mag·ne·si·um sul·fate

effervescent Epsom salt; magnesium sulfate, sodium bicarbonate, tartaric acid, and citric acid, moistened, passed through a sieve, and dried to a coarse granular powder; a purgative.

ef·fer·ves·cent mag·ne·si·um sul·fate

(efĕr-vesĕnt mag-nēzē-ŭm sŭlfāt)
Effervescent Epsom salt; magnesium sulfate, sodium bicarbonate, tartaric acid, and citric acid, moistened, passed through a sieve, and dried to a coarse granular powder; a purgative.