arsenic acid

American  

noun

Chemistry.

1. a white, crystalline, water-soluble powder, H 3 AsO 4 ⋅½H 2 O, used chiefly in the manufacture of arsenates.

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arsenic acid British  

noun

1. a white poisonous soluble crystalline solid used in the manufacture of arsenates and insecticides. Formula: H 3 AsO 4

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Etymology

Origin of arsenic acid

First recorded in 1795–1805

Example Sentences

Sulphurous acid, we may add, is the predominant smell in a copper-work; but arsenic acid, hydrofluoric acid, and even arseniuretted hydrogen, are not at all unfrequent.

From Chambers's Edinburgh Journal, No. 458 Volume 18, New Series, October 9, 1852 by Chambers, Robert

It is easily oxidized by heating with concentrated nitric acid to arsenic acid, and with concentrated sulphuric acid to arsenic trioxide; dilute nitric acid only oxidizes it to arsenious acid.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" by Various

For the examination of technical products experiments made in sulphuric acid solutions have no value, since arsenic acid, which is generally present to a greater or less extent, affects the end reaction.

From A Text-book of Assaying: For the Use of Those Connected with Mines. by Beringer, Cornelius

From the arsenical waste arsenious acid can be recovered, and converted back into arsenic acid by the action of nitric acid.

From Coal and What We Get from It by Meldola, Raphael

Arsenic acid process for magenta discovered; leading to manufacture of arsenic acid.

From Coal and What We Get from It by Meldola, Raphael