Noun:

स्तनपायी पशुओ के मुत्र मे पाया जाने वाला एक मिश्रण जो घुलनशील, रंगहीन और स्फुटमय होता है,

urea's Usage Examples:

Potassium permanganate oxidizes it to urea (R.

Urea may be recognized by its crystalline oxalate and nitrate, which are produced on adding oxalic and nitric acids to concentrated solutions of the base; by the white precipitate formed on adding mercuric nitrate to the neutral aqueous solutions of urea; and by the so-called "biuret" reaction.

Ethyl nitrate, C2H5.0N02, is a colourless liquid which boils at 86.3° C. It is prepared by the action of nitric acid on ethyl alcohol (some urea being added to the nitric acid, in order to destroy any nitrous acid that might be produced in secondary reactions and which, if not removed, would cause explosive decomposition of the ethyl nitrate).

On the latter they act as diuretics, but less powerfully than potassium, increasing the flow of water and the output of urea and rendering the urine less acid.

On oxidation with potassium permanganate it is converted into acetyl urea, together with other products.

Dry chlorine gas passed into melted urea decomposes it with formation of cyanuric acid and ammonium chloride, nitrogen and ammonia being simultaneously liberated.

Alkaline hypobromites or hypochlorites or nitrous acid decompose urea into carbon dioxide and nitrogen.

The urea oxalate is recrystallized and decolorized and finally decomposed by calcium carbonate (J.

phys [2], 8, p. 235) concentrates the urine and precipitates the urea by nitric acid.

When heated with urea, it forms oxalyl diureide, H 2 N [[Coco.

Synonyms:

organic compound, carbamide,