ammoniacal

[ am-uh-nahy-uh-kuh l ]

/ ˌæm əˈnaɪ ə kəl /

consisting of, containing, or using ammonia.

like ammonia.

Also ammoniac.

Origin of ammoniacal

First recorded in 1725–35; ammoniac + -al¹

The ammoniacal solution of the colouring matter of cochineal yields three well-marked absorption bands.

Cooley's Practical Receipts, Volume II |Arnold Cooley
An ammoniacal solution of cochineal is used for making many violet and mallow colours.

A Dictionary of Arts, Manufactures and Mines |Andrew Ure
A few drops of an ammoniacal solution of copper sulphate was added to the water extract.

Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron) |William Anderson Syme
An ammoniacal solution of silver nitrate is reduced by chloral; and nascent hydrogen converts it into aldehyde.

Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 |Various

When heated pretty strongly, the ammoniacal alum loses its sulphuric acid and ammonia, and only the earth remains.

A Dictionary of Arts, Manufactures and Mines |Andrew Ure

ammoniacal

/ (ˌæməˈnaɪəkəl) /

of, containing, using, or resembling ammonia Also: ammoniac