Potassium hydroxide (caustic potash)
Caustic potash, the common name of potassium hydroxide, an alkaline and corrosive potassium compound.
Characteristics
- Chemical formula KOH, CAS number 1310-58-3.
- Strong base used industrially to make soft soap.
- In solution it supplies potassium and hydroxide ions.
- Hygroscopic: absorbs water from the air.
Role in the preparation: Acts as an alkaline reagent to saponify oils or adjust the pH of a preparation.
Caution: Causes severe burns: wear gloves, goggles and long sleeves, use non-aluminium containers and rinse any splash with plenty of water.
Sources: NOAA CAMEO Chemicals - Potassium hydroxide
Documentary information: this is neither a recommendation for use nor a plant-protection or veterinary claim. Check your country's regulations before any use.