hydrogen cyanide


Also found in: Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.

hydrogen cyanide

n.
A colorless, volatile, extremely poisonous flammable liquid, HCN, miscible in water and used in the manufacture of dyes, fumigants, and plastics. It has an almondlike odor and becomes a gas at 26°C.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

hydrogen cyanide

n
(Elements & Compounds) a colourless poisonous liquid with a faint odour of bitter almonds, usually made by a catalysed reaction between ammonia, oxygen, and methane. It forms prussic acid in aqueous solution and is used for making plastics and dyes and as a war gas. Formula: HCN. Also called: hydrocyanic acid
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

hy′drogen cy′anide


n.
a colorless poisonous gas, HCN, having a bitter almondlike odor: in aqueous solution it forms hydrocyanic acid.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

hydrogen cyanide

A colorless, flammable, extremely poisonous liquid, HCN. It is used to make dyes, poisons, and plastics. A solution of hydrogen cyanide in water forms a colorless acid that has a characteristic smell of bitter almonds.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hydrogen cyanide - a highly poisonous gas or volatile liquid that smells like bitter almonds; becomes a gas at around 90 degree Fahrenheit and is most dangerous when inhaled; the anhydride of hydrocyanic acid; used in manufacturing
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
BlausäureCyanwasserstoff
formonitriilisinihapposyaanivetysyaanivetyhappo
cyanure d'hydrogène
cyjanowodór
References in periodicals archive ?
Suncor refinery emits hydrogen cyanide from a fuel catalytic cracking unit which is primarily used in producing additional gasoline in the refining process which is part of the company's crude oil processing.
Urethanes and polyisocyanurates are more toxic and, when burning, emit hydrogen cyanide, which will disable humans and pets faster.
In 2015, a team of researchers showed it was possible to synthesize RNA precursors with hydrogen cyanide, hydrogen sulfide, and ultraviolet light.
Moreover, burning of the dumped bags pollutes air by emitting toxic gas like Hydrogen cyanide which is perilously menacing for environment and public health.
Richard Hull, professor of chemistry and fire science at the University of Central Lancashire, told Sky News: "Once the fire had spread to the foam, every flat would have its own source of PIR foam, which would have produced enough hydrogen cyanide to kill all the people in that flat."
Three people injured in the blaze were treated in hospital with an antidote for hydrogen cyanide poisoning but it is thought the number of victims affected may be higher.
NEW YORK, May 19 (KUNA) -- The US voiced concern about the way the World Intellectual Property Organization (WIPO) has handled North Korea's patent application for the production of sodium cyanide - a banned inorganic compound that forms the toxic hydrogen cyanide. US Ambassador Nikki Haley said in a statement on Friday that the thought of placing cyanide in the hands of the North Koreans, considering their record on human rights, political prisoners, and assassinations, is not only dangerous but defies common sense.
Synopsis: It all started with an email, then a meeting at the pub, and then a bottle of hydrogen cyanide. Suddenly, disgruntled customer service rep Logan Weidman found himself initiated into the mysterious Ring of Monarchs, where wealth and status are guaranteed, and everything always works out for its members--even getting away with murder.
If they are clouds, they're probably made of ethane, acetylene or hydrogen cyanide, based on what researchers have learned about Pluto's atmosphere.
Their topics include multifunctional coatings for solar energy applications, glass-based proton exchange membranes for fuel cell applications, positron-positronium annihilation studies of nanomaterials related to energy and the environment, roles of reduced graphene oxide in improving photocatalytic hydrogen generation performance over metal sulphide nanocomposites, utilizing biological polysaccharides as environmentally friendly structural materials, nanostructured copper oxide for sensing hydrogen cyanide gas, and nanomaterials and health.
The MicroRAE simultaneously monitors hydrogen sulphide (H2S), carbon monoxide (CO), oxygen (O2) and combustible gases (LEL) in its standard four-gas configuration, and has a sensor configuration available for hydrogen cyanide (HCN) as well.
The remainder can then decompose to produce the poisonous gas hydrogen cyanide.