Definition of sodium hydroxide
: a white brittle solid NaOH that is a strong caustic base used especially in making soap, rayon, and paper
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Recent Examples of sodium hydroxide from the Web
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If the alkali is sodium hydroxide, the result is a hard soap, relatively difficult to dissolve.
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Their simple, two-step process starts with boiling wood in a solution of sodium hydroxide (NaOH) and sodium sulfite (Na2SO3), a chemical treatment similar to the first step in creating the wood pulp used to make paper.
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One thousand pounds of sodium hydroxide, also known as lye, leaked from the tank, according to the response center report.
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Skyscrapers of the future could even be built from wood. The process starts by soaking wood in a bath of sodium hydroxide and sodium sulfate.
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Maine’s Department of Environmental Protection website says the plant had several owners from 1967 through 2000 and produced chlorine, sodium hydroxide, chlorine bleach, hydrochloric acid and the pesticide chloropicrin.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sodium hydroxide.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of sodium hydroxide
1885
Medical Dictionary
sodium hydroxide
medical Definition of sodium hydroxide
: a white brittle deliquescent solid NaOH that dissolves readily in water to form a strongly alkaline and caustic solution and that is used in pharmacy as an alkalizing agent — called also
caustic soda
Learn More about sodium hydroxide
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Britannica.com: Encyclopedia article about sodium hydroxide
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