UREA

A peculiar crystallizable substance held in solution in the urine. When dried in vacuo it consists, accordingtoDr. Prout, of Theory. Atoms 466-6767 Experiment46~656-65 Nitrogen.... 2 Equiv.28 20-00 2007 Carbon.... 2 Hydrogen... 4 26-66 OT7gen.... 4 12in 26-63 60 | 100-00 100-00 Urea is readily soluble in water, tastele , inodorous; and when mixed with the other contents of the urine very prone to putrefaction, the principal result of which is carbonate of ammonia. Urea has been artificially obtained by the action of ammonia on cyanate of lead: oxide of lead is precipitated, and colourle crystals of urea obtained by carefully evaporating the solution. UREDO.1286 (Lat. uro, / bum.) A genus of microscor/i- [s. 1300]