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