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Versatile Functional Electrolyte Potassium Citrate

Potassium citrate (K₃C₆H₅O₇) is the potassium salt of citric acid, appearing as a white crystalline powder. It is highly soluble in water but insoluble in alcohol. With excellent buffering capacity, pH regulation, and potassium supplementation, potassium citrate is widely used in food, beverages, pharmaceuticals, cosmetics, and industrial applications.
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  • Sodium Citrate

  • ZIO

 

Product Overview


Appearance & Basic Traits

Potassium Citrate is the potassium salt of citric acid, appearing as a fine white crystalline powder. It has a slightly salty, alkaline taste and is highly soluble in water (insoluble in ethanol). Its solubility and nutrient profile make it ideal for formulations needing both pH control and electrolyte supplementation.


Core Application Fields

It is widely used in food & beverages (especially sports drinks), pharmaceuticals, cosmetics, and industrial fermentation. Its dual role as a pH regulator and potassium source sets it apart from other acid salts.


Key Ingredients


Component Sources

Potassium Citrate is synthesized from high-purity citric acid (often via natural fermentation) and pharmaceutical-grade potassium. The natural citric acid ensures safety, while the potassium component adds nutritional value—an advantage over non-nutritive acid salts.


Nutritional Edge

Unlike many additives, it acts as a potassium source, delivering essential nutrients that support bodily functions. This makes it a top choice for functional foods and beverages aimed at health-conscious consumers.


Property

Value

Chemical Name

Potassium Citrate

Molecular Formula

K₃C₆H₅O₇

Molecular Weight

306.39

Appearance

White crystalline powder

Solubility

Soluble in water, insoluble in ethanol

Taste

Slightly salty and alkaline

Stability

Stable under normal conditions; hygroscopic, should be stored sealed

Potassium Citrate food additive


Product Benefits


Safety & Global Compliance

Recognized as safe by FAO/WHO, Potassium Citrate meets international food additive and pharmaceutical standards. It is suitable for sensitive products, from infant formulas to skincare items.


Multi-Functional Efficacy

In food & beverages: It acts as a pH buffer to balance acidity, a stabilizer to prevent separation, and a potassium supplement in sports drinks (supporting muscle and cardiovascular health).

In pharmaceuticals: It aids urinary alkalization (reducing kidney stone risk) and corrects acid-base imbalances. It is also used as an electrolyte supplement for patients with deficiencies.

In cosmetics: It regulates product pH to enhance skin compatibility and stabilize formulations (e.g., toners, lotions).

In industry: It serves as a chelating agent in detergents and a buffering salt in fermentation processes.


Easy Formulation & Manageable Hygroscopicity

Its high water solubility ensures quick dissolution in liquid products (e.g., functional drinks, oral medications), avoiding sedimentation and ensuring uniform ingredient distribution.

While slightly hygroscopic, proper sealed storage maintains its powder form—ensuring easy handling in large-scale production and preventing clumping.



Precautions


Storage Guidelines

Due to mild hygroscopicity, store Potassium Citrate in a cool, dry area with tight-sealed packaging. Moisture can cause clumping (affecting flowability but not chemical efficacy).


Consumption Notes

Individuals with severe kidney disease or potassium restrictions should consult healthcare providers before using high-potassium products. Excessive potassium intake may pose health risks for this group.


Application Standards

Use grade-specific Potassium Citrate (e.g., cosmetic-grade for skincare, pharmaceutical-grade for medications) to ensure compatibility and safety. Follow industry regulations for dosage and formulation.


FAQ


Is Potassium Citrate safe for sports drinks?

Yes. It is a safe electrolyte source that supplements potassium (critical for muscle function) and acts as a pH buffer to improve taste—making it ideal for sports and functional beverages.


How does it help with kidney stone prevention?

In pharmaceuticals, it alkalizes urine, reducing the formation of certain kidney stones. It also regulates acid-base balance to support urinary tract health.


Can it be used in cosmetics?

Absolutely. As a pH regulator, it maintains optimal pH in skincare products (e.g., lotions) to enhance skin compatibility and prevent product degradation.


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