Potassium Hydroxide, 500g

  • Lab
  • KOH
  • 1310-58-3
  • Download
  • See Below.
  • Only via Standard Ground
    - USA & Canada.
  • UN1813, Class 8, PG II
  • Buy at least 12, save 10%
  • NC-0740
Price: $16.95
- +

Lab grade, Flake.

Also known as caustic potash or potash lye, potassium hydroxide is strongly caustic. Its uses in the laboratory and industry include bleaching, electro-plating and herbicides. 

Instead of sodium hydroxide, potassium hydroxide is commonly used to make liquid soap than bar soap because it is more soluble and has a higher content of cleaning agent, creating a softer soap.

For shipping, Potassium Hydroxide is in hazardous materials Class 8: Corrosive Substances. It only ships to destinations within the 48 contiguous US states and Canada using Standard Ground by FedEx or UPS • No air deliveries allowed • Customers in Canada should expect additional duties, taxes, and customs clearance service fees due upon delivery.


Unopened chemicals in original packaging may be returned within 30 days of shipment with prior approval. Call 800-372-6726. Customers are responsible for shipping costs.


Chemicals with hazard fees are limited to the 48 contiguous U.S. states. Ground-only (No-Fly) chemicals are limited to the 48 contiguous U.S. states and Canada, unless otherwise stated.


Certificates of Analysis for chemicals are available upon request. Use our request page at this link