hydrocyanic acid


  • WordNet 3.6
    • n hydrocyanic acid a solution of hydrogen cyanide in water; weak solutions are used in fumigating and in the synthesis of organic compounds
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Webster's Revised Unabridged Dictionary
    • 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.
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In literature:

It is manifest that, but for this later compound, we might double the quantity of hydrocyanic acid from the yellow salt.
"American Handbook of the Daguerrotype" by Samuel D. Humphrey
Most of these can be easiest controlled by hydrocyanic acid gas treatment.
"Three Acres and Liberty" by Bolton Hall
Gabriel jerked up his revolver, as he ran, the terrible weapon shooting bullets charged with hydrocyanic-acid gas.
"The Air Trust" by George Allan England
This salt is said to have no poisonous properties, although the dangerous hydrocyanic acid is made from it.
"Scientific American Supplement, No. 483, April 4, 1885" by Various
Hydrocyanic acid, its electrolyses, 771, 788.
"Experimental Researches in Electricity, Volume 1" by Michael Faraday
The latter require the services of an exterminator or some one skilled in the use of hydrocyanic acid gas.
"If You're Going to Live in the Country" by Thomas H. Ormsbee and Richmond Huntley
Vomiting, for example, can sometimes be checked by effervescing drinks, such as citrate of caffein, or by dilute hydrocyanic acid and bismuth.
"Manual of Surgery" by Alexis Thomson and Alexander Miles
The diluted hydrocyanic acid of the Pharmacopoeia contains 2 per cent.
"Aids to Forensic Medicine and Toxicology" by W. G. Aitchison Robertson
Cyanogen and hydrocyanic acid, recognizable by their odour, indicate decomposable cyanides.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1" by Various
C., which explodes violently when heated with water, yielding hydrocyanic acid (CH3NCl2 = HCN + 2HCl).
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4" by Various

In news:

Many sorghum- and sudan-type plants, including johnsongrass, can release a poisonous substance known as prussic or hydrocyanic acid.
Cyanide, prussic acid , hydrogen cyanide or hydrocyanic acid poisoning are all terms describing the same condition.