CEFR C1

caustic ammonia

noun phrase

Meaning

A solution of ammonia in water, often used in industrial processes for cleaning, bleaching, and as a disinfectant, but highly corrosive and requiring careful handling.

Examples

  • Caustic ammonia is commonly used in the manufacturing of textiles, paper, and leather products.
  • The worker suffered severe burns after being exposed to caustic ammonia during a factory accident.