acide cyanhydri ... | francusko - engleski prevod

HCN; Poisonous gas formed by the reaction of sodium cyanide with dilute sulfuric acid; it is used for fumigation.
The salts formed from it are cyanides—for example sodium cyanide, used in hardening steel and extracting gold and silver from their ores. If dissolved in water, hydrogen cyanide gives hydrocyanic acid.