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

See Examples For:

arsenic acid

This substance dissolves slowly in water, forming arsenic acid; by heating to redness it decomposes into arsenic and oxygen.

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

Having got the arsenic into solution as arsenic acid, and in a volume not much exceeding 50 c.c., add about 20 c.c. of dilute ammonia and 20 c.c. of "magnesia mixture."

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

It should be stated also, that during the formation of magenta by the arsenic acid process, there are formed small quantities of other colouring-matters which are utilized by the manufacturer.

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

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

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