isocyanic acid

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Related to isocyanic acid: melamine, HCN

i·so·cy·an·ic ac·id

(ī'sō-sī'ă-nik as'id),
A highly reactive chemical, HNCO.
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the conversion of isocyanic acid to ammonia occurs almost exclusively in the presence of a catalyst [19, 20].
Remaining urea can react with previously formed isocyanic acid to form biuret ([C.sub.2][H.sub.5][N.sub.3][O.sub.2]) at temperatures of 433 K, as in Equation 3.
Wang, "Neutral loss of isocyanic acid in peptide CID spectra: a novel diagnostic marker for mass spectrometric identification of protein citrullination," Journal of the American Society for Mass Spectrometry, vol.
Tryptic peptides were fragmented by collision- induced dissociation, and resulting spectra were analyzed for a neutral loss of 43 Da, reflecting the loss of isocyanic acid as a fragmentation product of citrulline (upper panel).
Isocyanic acid in a global chemistry transport model: tropospheric distribution and budget, and identification of regions with potential health impacts.
Four separate measurements of isocyanic acid were made in urban Los Angeles, near a wildfire at Fourmile Canyon, Colorado, in laboratory burning experiments, and in cigarette smoke.
The isocyanic acid produced during the thermolysis of urea can react with unreacted urea to form biuret and triuret, or other high molecular weight heterocyclic compounds, which are known to form another type of deposits in the exhaust.
This reaction mainly results from interaction between isocyanic acid and proteins (Fig.
No wildfires were burning near Los Angeles at the time, so "we assume isocyanic acid came from vehicle exhaust or photochemical reactions known to make it," Roberts says.
Although unstable, isocyanic acid, the reactive compound that binds to lysine residues during the carbamylation reaction, may be quantified after convenient derivatization and separation.