Definition of sodium hydroxide in English:

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sodium hydroxide

Pronunciation: /ˈˌsōdēəm hīˈdräkˌsīd/


A strongly alkaline white deliquescent compound used in many industrial processes, e.g., the manufacture of soap and paper.
  • Chemical formula: NaOH.
Example sentences
  • Primary alkaline batteries use sodium hydroxide or potassium hydroxide as the electrolyte.
  • Platinum also dissolves in hot alkalis such as hot sodium hydroxide or potassium hydroxide.
  • By melting silica mixed with sodium hydroxide or calcium oxide one is able to interrupt the long chains of silicon-oxygen bonds to form more easily melted glasses.

For editors and proofreaders

Syllabification: so·di·um hy·drox·ide

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