cyanic acid

Chemical compounds that often trimerise are aliphatic isocyanates and cyanic acids.

Note that sometimes information presented for cyanic acid in reference books is actually for isocyanic acid.

First, urea decomposes into cyanic acid and ammonia in an endothermic reaction:

Pure cyanic acid has not been isolated, and isocyanic acid is the predominant form in all solvents.

It is the sulfur analog of cyanic acid (HOCN).

The strongest electrophile would then be the cyanide nitrogen, which, if attacked by water, would yield cyanic acid and the original cysteine.

Cyanuric acid is the cyclic trimer of the elusive species cyanic acid, HOCN.

Working with cyanic acid and fulminic acid, they correctly deduce that isomerism was caused by differing arrangements of atoms within a molecular structure.

Ammonium cyanate decomposes to ammonia and cyanic acid which in turn react to produce urea in a nucleophilic addition followed by tautomeric isomerization:

Unit 516 and other units used assorted chemicals in liquid or gaseous form, including mustard gas, lewisite, cyanic acid gas and phosgene, experimentally and sometimes operationally.

Cyamelide is an amorphous white solid (HNCO)x and is the polymerisation product of cyanic acid together with its cyclic trimer cyanuric acid.

Low-temperature photolysis of solids containing HNCO has been shown to make H-O-C N, known as cyanic acid or hydrogen cyanate; it is a tautomer of isocyanic acid.

Notodontid larvae are notable for their often bizarre shapes, and some have chemical defenses (cyanic acid, formic acid, and other ketones: Blum, 1981) not commonly found in other Lepidoptera (Weller 1992).

The tautomer, known as cyanic acid, NCOH, in which the oxygen atom is protonated, is unstable to decomposition, but in solution it is present in equilibrium with isocyanic acid to the extent of about 3%.

Then, cyanic acid polymerizes to form cyanuric acid which condenses with the liberated ammonia forming melamine which releases water which then reacts with cyanic acid present(which helps to drive the reaction) generating carbon dioxide and ammonia.