The Collaborative International Dictionary
Hydrocyanic \Hy`dro*cy*an"ic\, a. [Hydro-, 2 + anic: cf. F. hydrocyanique.] (Chem.) Pertaining to, or derived from the combination of, hydrogen and cyanogen.
Hydrocyanic acid (Chem.), a colorless, mobile, volatile liquid, HCN, having a characteristic peach-blossom odor. It is one of the most deadly poisons. It is made by the action of sulphuric acid on yellow prussiate of potassium (potassium ferrocyanide), and chemically resembles hydrochloric and hydrobromic acids. Called also prussic acid, hydrogen cyanide, etc.
Wiktionary
n. (context chemistry English) a solution of hydrogen cyanide, HCN, in water; a weak poisonous acid, used as a fumigant
WordNet
n. a solution of hydrogen cyanide in water; weak solutions are used in fumigating and in the synthesis of organic compounds [syn: prussic acid]
Usage examples of "hydrocyanic acid".
He did not anticipate that vegetation would be deeply affected, unless the event were of inconceivable persistence and activity, for, though the poisonous quality of hydrocyanic acid consisted in its arrest of oxidation, vegetation had two sources of existence—.
I may add that Signorina di Peculini killed herself by inhaling hydrocyanic acid-perhaps you know it better as Prussic acid-in a bottle from which came the single drop, allowed to settle in the bloom of the rose, which killed Mrs.
Egg-and contains, therefore, a small proportion of hydrocyanic acid.
If we maintain that it isn't possible to get a control sample that is free of hydrocyanic acid.
If we maintain that it isn't possible to get a control sample that is free of hydrocyanic acid .
The peroxide of hydrogen and hydrocyanic acid, you know, make oxamide, which is a harmless compound.
I know your game--the water forms acetylene with the carbon, and that uniting with the nitrogen of the air under the terrific heat of the electric arc forms hydrocyanic acid.
To my mind it is an exact, though perhaps less active, counterpart of hydrocyanic acid.