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sodium polysulfide

American

noun

Chemistry.

a yellow-brown, water-soluble, granular powder, Na 2 S n , used chiefly in the manufacture of sulfur dyes, insecticides, and synthetic rubber.

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In the early 19205 Chemist J. C. Patrick of Kansas City, who was looking for a good anti-freeze mixture, mixed ethylene dichloride and sodium polysulfide, surprisingly obtained a gummy mass resembling rubber.

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