effervescence antiacid

What is potassium citrate

Potassium citrate — with the molecular formula C6H5K3O7 and the CAS Number 866-84-2 — is also referred to by its IUPAC name as tripotassium citrate. It is a salt resulting from citric acid and potassium. Its production is accomplished when either potassium carbonate or bicarbonate is added to a solution made of citric acid. Upon mixing, effervescence occurs. After the foaming stops, the potassium citrate mixture is filtered. Then, as a result of evaporation, the eventual salt emerges as a granular substance. In its purified state, potassium citrate is odorless, hygroscopic, salty to the taste, and contains nearly 40 percent potassium. E332 is the potassium citrate food additive E number. Added to everything from processed foods to medicines, its ability to act as both a buffering agent and a diuretic make it useful across many applications — from the medical field to the food and beverage sector.

If you need high-quality potassium citrate and other ingredients from a distributor you can rely on, contact Brenntag North America now.

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Industries Where Potassium Citrate Is Widely Used

From edible to pharmaceutical products, potassium citrate is regularly employed as a buffering agent, flavoring agent, chelating agent, stabilizer, emulsifying salt, and antioxidant. Specifically, for food and beverage manufacturers, the ingredient is commonly used as a buffering agent for carbonated beverages — such as various sodas — to control the acidity of those beverages and, therefore, keep their pH levels within a desired range. Plus, when used as a food ingredient, potassium citrate effectively regulates the acidity of certain processed foods without the added bitterness that other salts can cause.

Potassium citrate also serves many medical purposes for both human and veterinary care. In human medicine, its ability to metabolize quickly and control pH levels in liquids — such as blood — makes it one of the ideal elements in the treatment of kidney stones, especially those that result from conditions such as renal tubular acidosis. Such a condition causes the inability of the kidneys to regulate pH levels within the body by disposing of acids from the bloodstream through urination.

Additionally, potassium citrate helps in the treatment of both gout and arrhythmia, especially when patients are suffering from hypokalemia — or an insufficient amount of potassium in the blood. In both human and veterinary medicine, the pain associated with passing highly acidic urine is frequently treated by the prescription of potassium citrate that acts as an effective alkalizer of urine.


Potassium citrate comes as either a colorless crystal or a white powder in crystalline form. It has no odor but tastes like salt. It possesses the ability to absorb moisture and is soluble in both water and glycerin. However, in ethanol it is insoluble. While it is quickly metabolized by the human body when taken orally, it poses no major harm or risk to health, especially with regard to undue changes to potassium concentrations in the bloodstream.


When food scientists, research and development teams, and procurement professionals need a reliable potassium citrate distributor, Brenntag North America is always there to help with dedicated account managers and tailor-made supply chain solutions. Our GFSI-certified warehousing and complete compliance with HACCP food safety regulations and ISO standards mean you can get the products you want as well as a company-wide commitment to food safety and traceability that minimizes your exposure to risk. To access on-time delivery of all the ingredients and food grade products your company needs, contact us today.

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