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sodium sulfide

noun, Chemistry
a yellow or brick-red, crystalline, deliquescent, water-soluble solid, Na 2 S, used chiefly in the manufacture of dyes, soaps, and rubber, as a depilatory for leather, and in the flotation of powdered lead and copper ores. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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  • The conventional dehairing agent has been sodium sulfide, but safer, environmentally benign alternatives are needed.

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