Urea

Urea is an organic compound. It was first found in urine in 1773 by the French chemist Jean Rouelle. It is also called Carbamide, and its chemical names are Carbonyl Diamide (used in inorganic chemistry) and Diaminomethanal (used in organic chemistry).

In humans, it is a normal component of blood and many body tissues. It is produced in the liver, where ammonia, a very toxic substance, is changed into urea, which has a very low toxicity, so low in fact, that it is many times less toxic than table salt. Most of the urea produced in this way is not needed by the body, and is removed from the blood in the kidneys and taken out of the body in urine.

 References 

 Other websites 
 MSDS sheet on urea 
 Use of urea in hand dyeing
 use of urea as an automotive reagent to reduce harmful emissions (AdBlue )
 The dispensing and handling of Urea AdBlue (AdBlue )

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Category:Functional groups