... Acid Dequest 2014 Molecular Formula: C2H8-xO7P2Kx (HEDP Kx)Potassium salt of 1-Hydroxy Ethylidene-1,1- ... is the potassium salt of Dequest 2010, HEDP·Kx has better dissolution ability than that of sodium ... salt under neutral condition. HEDP·Kx is a good scale inhibitor for calcium carbonate, ... in room shady and dry place. (HEDP Kx)Potassium salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic ...