cyanuric acid


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cy·a·nu·ric ac·id

(sī'ă-nyūr'ik as'id),
A cyclic product formed by heating urea; used industrially and as an herbicide.
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Infant formula powder was spiked with solutions containing different concentrations of the corresponding adulterant (melamine or cyanuric acid).
In case the sample contained cyanuric acid, the start or reinitiation of decomposition could be observed around 278 [degrees]C (OP305/200/47, OP320/200/90).
In fact, concurrent administration of melamine and cyanuric acids results in acute toxicity due to the formation of insoluble product i.e.
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?
When their kidneys were examined, pathologists found large, gold-brown crystals that were later associated with melamine and cyanuric acid contamination.
Now people are paying attention, following disclosures last March that at least 16 pets died from poisoned food containing highly suspect ingredients imported from China: wheat gluten laced with cyanuric acid and melamine (chemical byproducts that give the appearance of increased protein content).
The swine had been given feed from China laced with melamine and cyanuric acid, the same toxins that caused an unknown number of pets to develop kidney disease and die.
Later in the investigation, a team at the University of Guelph also found cyanuric acid and melamine in the tissues, kidneys, and urine of infected pets.
The FDA said that the food contained ingredients tainted with melamine, used in making plastic, and cyanuric acid, a melamine byproduct used to sanitize pool water, and that the interaction between the chemicals probably caused renal failure in the animals.
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.
Because the salt chlorinator is making an unstabilized form of chlorine, elevated cyanuric acid levels (60-80 ppm) are needed to maintain a proper residual.
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.