Potassium Hydroxide (KOH) or Caustic Potash

Catalog Number: ASC-1067

Overview

Potassium Hydroxide, commonly known as caustic potash, is a highly versatile inorganic compound with the chemical formula KOH. It is a strong base, widely utilized across various industries for its caustic properties and reactivity. Available in solid forms such as pellets, flakes, or powders, it is essential in applications ranging from chemical manufacturing to food processing.

Chemical Identity

Chemical Name: Potassium Hydroxide
Synonyms: Caustic Potash, Lye
CAS Number: 1310-58-3
Molecular Formula: KOH
Molar Mass: 56.11 g/mol

Specifications

Appearance: White, deliquescent solid (pellets, flakes, or powder)
Purity: ≥ 85% (ACS grade)
Melting Point: ~360°C
Boiling Point: ~1320°C
Density: ~2.04 g/cm³ at 20°C
Solubility: Highly soluble in water, releasing heat upon dissolution; also soluble in ethanol and glycerol
pH (1% solution): ~13.5

Applications

Chemical Manufacturing: Used in the production of potassium salts, soaps, and detergents.
Food Industry: Employed as a food additive (E525) for pH control and as a stabilizer.
Pharmaceuticals: Acts as a reagent in various pharmaceutical formulations.
Agriculture: Utilized in the formulation of fertilizers and pesticides.
Laboratory Use: Serves as a strong base in analytical chemistry and titrations.
Biodiesel Production: Functions as a catalyst in the transesterification process.
Battery Industry: Used as an electrolyte in alkaline batteries.

Safety and Handling

Potassium Hydroxide is highly caustic and can cause severe burns upon contact with skin or eyes. Proper personal protective equipment (PPE) such as gloves, safety goggles, and protective clothing should be worn when handling. Ensure adequate ventilation and avoid inhalation of dust or fumes. In case of contact, rinse immediately with plenty of water and seek medical attention. Refer to the Safety Data Sheet (SDS) for detailed information.

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