potassium gluconate potassium gluconate potassium gluconate is the potassium salt of the conjugate base of gluconic acid. it is also referred to as 2,3,4,5,6-pentahydroxycaproic acid potassium salt, d-gluconic acid potassium salt, or potassium d-gluconate. potassium gluconateclinical dataahfs/drugs.comconsumer drug informationmedlineplusa601072atc codea12ba05 (who) identifiers iupac name potassium (2r,3s,4r,5r)-2,3,4,5,6-pentahydroxyhexanoate cas number299-27-4 npubchem cid16760467chemspider8931 yunii12h3k5qkn9e numbere577 (acidity regulators, ...) comptox dashboard (epa)dtxsid7029617 echa infocard100.005.523 chemical and physical dataformulac6h11ko7molar mass234.245 g·mol−13d model (jsmol)interactive imagemelting point180 °c (356 °f) (decomposes) smiles .c(=o)(o)(o)(o)(o)co inchi inchi=1s/c6h12o7.k/c7-1-2(8)3(9)4(10)5(11)6(12)13;/h2-5,7-11h,1h2,(h,12,13);/q;+1/p-1/t2-,3-,4+,5-;/m1./s1 ykey:hlcfgwhyrozgbi-jjkgcwmisa-m y ny (what is this?) (verify) it contains 16.69% potassium by mass. thus 5.99 g of potassium gluconate contains 1 g of potassium. it has a density of 1.73 g/cm3. dietary uses potassium gluconate is used as a mineral supplement and sequestrant. it is sold over-the-counter as tablets or capsules providing up to 593 mg of potassium gluconate, thereby containing 99 mg or 2.53 milliequivalents of elemental potassium. this is the permissible upper limit for each tablet or capsule of over-the-counter potassium supplements sold in the us. potassium gluconate is also sold over-the-counter as bulk powder. as a food additive, potassium gluconate is used as an acidity regulator and yeast food. it is known as e number reference e577. safety its oral median lethal dose (ld50) in rats is 10.38 g/kg. this is not an indicator of a safe oral daily dose in rats or humans.