Definition of caustic soda in English:

caustic soda

noun

  • another term for sodium hydroxide
    • ‘Sodium hydroxide, NaOH, also known as lye and caustic soda, is one of the most important of all industrial chemicals.’
    • ‘Fire chiefs said it was ‘only by luck’ no-one was injured by the yellow substance, found to be a mix of caustic soda and hydrochloric acid.’
    • ‘Scottish Water admitted allowing a discharge of sodium hydroxide - or caustic soda - from their water treatment works at Bonnycraig near Peebles into a local stream in June last year.’
    • ‘One of the washing processes involves using sulphuric acid and caustic soda which can destroy car engines.’
    • ‘Chemical experts attended to supervise the pumping of the caustic soda into another tanker and officials from the Environment Agency also carried out inspections.’

Pronunciation:

caustic soda

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