sodium arsenite

American  

noun

Chemistry.

1. a white or grayish-white, water-soluble, poisonous powder, NaAsO 2 , used chiefly in arsenical soaps for hides, as an insecticide, and as a weed-killer.

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Example Sentences

Arsenic compounds are still liberally used, both as insecticides and as weed killers, where they usually take the chemical form of sodium arsenite.

From The New Yorker • Jan. 3, 2017

One of the earliest pesticides associated with cancer is arsenic, occurring in sodium arsenite as a weed killer, and in calcium arsenate and various other compounds as insecticides.

From "Silent Spring" by Rachel Carson

While the results of weed killers such as sodium arsenite or the phenols are grossly obvious, some other herbicides are more insidious in their effects.

From "Silent Spring" by Rachel Carson

Tearing it up by the roots, burning over old stone fences infected with it, keep it from overrunning a place; but the most satisfactory method of eradicating is to sprinkle the vines with sodium arsenite.

From If You're Going to Live in the Country by Lieberman, Frank

Dilute the hypochlorite solution with 15 c.cms. of water and titrate with a solution of N/10 sodium arsenite using starch-iodide paper as an external indicator.

From Chlorination of Water by Race, Joseph