Potassium gluconate

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Potassium gluconate
Potassium gluconate.svg
Clinical data
AHFS/Drugs.com Consumer Drug Information
MedlinePlus a601072
ATC code
CAS Number
PubChem CID
E number E577 (acidity regulators, ...)
ECHA InfoCard 100.005.523
Chemical and physical data
Formula C6H11KO7
Molar mass 234.246 g/mol
3D model (JSmol)
Melting point 180 °C (356 °F) (decomposes)
 NYesY (what is this?)  (verify)

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.[1]

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.[2]

Dietary uses[edit]

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 mEq of elemental potassium. This is the permissible upper limit for each tablet or capsule of over-the-counter potassium supplements sold in the USA. Potassium gluconate is also sold over-the-counter as bulk powder.


Its oral median lethal dose (LD50) in rats is 10.38 g/kg.[3] This is not an indicator of a safe oral daily dose in rats or humans.


  1. ^ "Product Name potassium gluconate". Sigma-Aldrich. Retrieved 2013-03-09. 
  2. ^ "Potassium gluconate". Wolfram Alpha. Retrieved 2013-04-21. 
  3. ^ "MSDS - P1847". Sigma-Aldrich. Retrieved 2013-04-21. 

External links[edit]