arsenic acid

noun

, Chemistry.

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

arsenic acid

noun

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

Word History and Origins

Origin of arsenic acid¹

First recorded in 1795–1805

Example Sentences

A salt having two equivalents of arsenic acid to one of the base.

From Project Gutenberg

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 Project Gutenberg

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

From Project Gutenberg

The filtrate contains the arsenic as arsenic acid.

From Project Gutenberg

This substance conducted, and was decomposed; but it contained water, and I was unable at the time to press the investigation so as to ascertain whether a fusible anhydrous arsenic acid could be obtained.

From Project Gutenberg