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isocyanic acid
isocyanic acid n.
Brit. 
/ˌʌɪsə(ʊ)sʌɪˌanɪk ˈasɪd/
, /ˌʌɪsə(ʊ)sʌɪˌanɪk ˈasɪd/U.S. /ˌaɪsoʊsaɪˌænɪk ˈæsəd/
the acid HN:C:O, which exists in equilibrium with cyanic acid (HO·CN)./ˌaɪsoʊsaɪˌænɪk ˈæsəd/ΘΚΠ
the world > matter > chemistry > organic chemistry > poisons > [noun] > others
oxalic acid1788
nicotine1817
alkarsin1838
tetanine1857
muscarine1869
cinnoline1883
saprine1887
isocyanic acid1891
mescaline1896
toxicodendrol1898
tube curare1898
tulipine1900
fluoroacetamide1909
thalassin1909
yperite1917
protoanemonin1920
Lewisite1921
organochloride1966
1891 Jrnl. Chem. Soc. 60 i. 282 Hydrocyanic acid and a small quantity of isocyanic acid are evolved.
1919 Jrnl. Amer. Chem. Soc. 41 381 The reaction between isocyanic acid and benzylidenaniline leads directly to a four-membered cyclic-urea.
1973 J. J. Lagowski Mod. Inorg. Chem. xi. 349 Isocyanic acid (mp −86·8°, bp 23·5°) is formed when cyanuric acid is passed through a hot tube; the product reverts to cyanuric acid spontaneously.
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