Potassium Hydroxide E525
pH adjuster, processing aid, stabilizer — Primarily synthetic.
Potassium hydroxide (KOH)
CAS: 1310-58-3
Factual Regulatory Reference
This database provides factual regulatory information compiled from official government sources. It does not constitute medical, nutritional, or safety advice. Regulatory status varies by country and is subject to change. Always refer to your local regulatory authority for the most current information.
? Did You Know?
Beyond food, Potassium Hydroxide is also used in cosmetics, medicine, industrial applications, household products. Its versatility makes it one of the most multi-purpose chemical compounds in everyday life.
In the EU, Potassium Hydroxide has a "quantum satis" authorization — Latin for "as much as needed." This means there's no specific maximum limit; manufacturers use only what's technologically necessary.
Detailed Regulatory Assessment
European Union (EFSA)
Used as processing aid; must be neutralized in final product.
Official EFSA LinkUnited States (FDA)
Used in food processing, particularly cocoa processing.
Japan (MHLW)
Compliant with Japanese food sanitation law.
Acceptable Daily Intake (ADI)
International Standard (JECFA)
mg/kg body weight per day
European Standard (EFSA)
Natural Occurrence
This additive is not known to occur naturally in significant quantities.
Manufacturing
Produced by electrolysis of potassium chloride solution, similar to sodium hydroxide production. The resulting potassium hydroxide is concentrated, purified, and available in pellet or solution form.
Applications Beyond Food
pH adjuster in liquid soaps (makes softer soap than sodium hydroxide), hair products.
pH adjustment in pharmaceutical formulations.
Fertilizers, electrolyte in alkaline batteries, chemical manufacturing, biodiesel production.
Liquid soap making (traditional soft soap), drain cleaners.