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Potassium hydroxide

Potassium Hydroxide for Soap Making, Battery Production and pH Regulation. Available at DutchChems.


What is potassium hydroxide?

Potassium hydroxide, often referred to as KOH or caustic potash, is a strong alkali that plays an essential role in various industrial applications and laboratory processes. It occurs as white, deliquescent crystals or flakes that dissolve easily in water and produce heat when dissolved. It is often used as a basis in various chemical reactions. From us you can buy potassium hydroxide of technical quality, ideal for a variety of applications. However, keep in mind the corrosive properties when used.

What can you buy/use potassium hydroxide for?

Potassium hydroxide has many uses, such as:

  • Production of soaps: As a saponification agent for fats and oils.
  • Batteries: Used in alkaline batteries.
  • pH regulation: For adjusting pH in industrial processes.
  • Laboratory applications: As an alkaline reagent.
  • Textiles: For treating some fabrics.
  • Food industry: Used as stabilizer and pH regulator.



Chemical safety: GHS symbol for corrosive. GHS symbol for irritant.
Corrosive Irritating


Molecular formula: Hcl
Caustic potash
Potassium lye
Potassium hydrate
Molecular weight: 56,106 g/mol
CAS Number:
EC Number
ICSC number:
UN number:


Dangers of potassium hydroxide

Potassium hydroxide is a very corrosive substance. Upon contact, it can cause severe burns and injuries. Protective measures, such as wearing gloves and goggles, are essential when handling KOH. Inhalation of the vapor can also cause respiratory irritation.

Other common areas of application of potassium hydroxide:

  • Biodiesel production: As a catalyst.
  • Cleaning agents: For the production of liquid soaps and detergents.
  • Water treatment: At pH regulation.
  • Agrochemistry: For the production of certain pesticides and fungicides.


  • Is potassium hydroxide dangerous?
    • Yes, it is a very corrosive substance and should be handled with great care.
  • What should I do in case of contact with potassium hydroxide?
    • In case of skin contact, rinse the affected area immediately with plenty of water. In case of eye contact, rinse the eyes abundantly and seek immediate medical attention.
  • Can I use potassium hydroxide at home?
    • While it can be used for some DIY applications, such as soap making, it is essential to handle KOH with care and with proper safety precautions.
  • Is it safe to mix potassium hydroxide with other chemicals?
    • It is important to know which substances are compatible with KOH before mixing it. Improper mixing can cause dangerous reactions.
  • Where can I find more information about potassium hydroxide?

Where can I buy Potassium Hydroxide?

With us you have come to the right place for top quality potassium hydroxide. Benefit from fast delivery and our excellent customer service. Due to the corrosive nature of potassium hydroxide, specific shipping requirements may apply.


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