Urea or Carbamide is an organic compound that was first discovered in 1773 by the French chemist Hilaire Rouelle. Urea is one of the compounds that is excreted by the human body and other mammals. The most important application of urea is the production of chemical fertilizers.
Material name (Persian): Carbonyl diamide
English name: carbonyl diamide
Brand Name (Persian): Urea
Brand name: Urea
Other names: Amide of carbonic acid, carbamide,
Related Materials: Ammonia, Ammonium Nitrate
Production complexes: Shiraz Petrochemical Complex, Razi, Ghadir
This molecule has two amine-NH 2 groups linked to a carbonyl-CO-group. Urea plays a very important role in the metabolism of nitrogen and forms a major part of the urinary tract of the mammary gland. Urea is colorless, odorless, etc., and so on. Acid. It is very soluble in water, etc. It is toxic and its major use in agricultural fertilizers. Urea was first discovered in 1773 by the French chemist Hilaire Rouelle. In 1828, German chemist Friedrich Urea was obtained by reacting silver isocyanate with ammonium chloride. This was the first time an organic compound was synthesized from an organic compound.
Fertilizer and Preparation of Urea Resins, Aldehyde Form, Pharmaceutical and Cosmetic Industries, Animal Feed, Preparation of Fire Powder and Preparation of Starch-Based Adhesives
Physical and chemical properties:
Molecular formula CH4N2O
Molar mass 60.07 g / mol
Density 1.32 g / cm3
Solubility in water 108 g / 100 ml (20 C) 167 g / 100 ml (40 C) 251 g / 100 ml (60 C) 400 g / 100 ml (80 C) 733 g / 100 ml (100 C)
Melting point 132.7135 ° C
Urea causes itching of the skin and eyes and has respiratory complications. Continuous exposure to the skin causes swelling of the skin. Its high concentration in the blood causes damage to the organs of the body. Heat it above the melting point causes it to decompose and generates toxic vapors. Normally not flammable, but mixing with strong oxidants such as nitride causes explosion.