Cyanuric Acid

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cyanuric acid

[¦sī·ə¦nu̇r·ik ′as·əd]
(organic chemistry)
HOC(NCOH)2N·2H2O Colorless, monoclinic crystals, slightly soluble in water; formed by polymerization of cyanic acid. Also known as pyrolithic acid.

Cyanuric Acid


(formula I), a cyclic trimer of cyanic acid; a colorless crystalline compound, which is soluble in hot water and alcohol.

Upon heating to 150°C, cyanuric acid depolymerizes without melting. Upon the action of alkalies, it forms monobasic, dibasic, and tribasic salts. In some of its reactions, for example, with diazomethane, it reacts in its tautomeric form—isocyanuric acid (II). Cyanuric acid may be produced by heating urea, as well as by other methods. The triamine derivatives of cyanuric acid— melamines—are of industrial importance, mainly in the production of melamine-formaldehyde resins. The acid-chloride derivative of cyanuric acid—cyanuric chloride—is also of industrial importance.

References in periodicals archive ?
Find out China's key cyanuric acid suppliers and their current supply capability
terrigena, could play a role in cyanuric acid formation, and the team found those and four other Klebsiella species in the rat feces.
So if both melamine and cyanuric acid have low levels of toxicity, then why is there such a concern for melamine adulteration in pharmaceutical products?
Yet precautions were being taken because melamine and melamine-related compounds include cyanuric acid, a combination of which is a "source of concern in relation to human and animal health," said David Elder, director of the Office of Enforcement with FDA's Office of Regulatory Affairs, at an April 26 news briefing.
In an alternative homogeneous assay, the released hippuric acid is chemically converted by cyanuric acid chloride and the absorbance is measured at 382 nm (Fig.
Chemical analysis of the water at the Atalaya Court Hotel, in Playa de las Americas, showed it contained five times the recommended level of cyanuric acid used to regulate chlorine.
Chemical analysis of the water at the hotel showed it contained five times the recommended level of cyanuric acid used to regulate chlorine.
The samples were soaked for 12 hour increments (0, 12, 24,36,48, and 128 hours) in simulated pool water prepared using calcium hypochlorite, tap water, cyanuric acid, and baking soda.
Tilbury says both strains are equipped with three genes necessary to breakdown or metabolise the man-made chemical to its final product, cyanuric acid, which is then used as a nitrogen source by bacteria.
Of late, these arguments have even taken on environmental strains because endothermics leave no ammonia or cyanuric acid byproducts.
The new finding involves mixing combustion gases with isocyanic acid (HNCO), a gas formed when the nontoxic cyanuric acid, or (HNCO).
In 2007, AB SCIEX addressed the global crisis surrounding melamine and cyanuric acid present in wheat gluten added to pet food, which resulted in the fatalities of several cats and dogs.