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Urea
Harnstoff.svg
Urea-3D-vdW.png
IUPAC name Aminomethylamide
Other names Carbamide
Identifiers
CAS number 57-13-6
SMILES NC(=O)N
Properties
Molecular formula (NH2)2CO
Molar mass 60.07 g/mol
Appearance white odourless solid
Density 1.33·10³ kg/m³, solid
Melting point

132.7 °C (406 K)
decomposes

Boiling point

n.a.

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)
Acidity (pKa) 0.18
Basicity (pKb) 13.82
Structure
Dipole moment 4.56 p/D
Hazards
MSDS ScienceLab.com
NFPA 704

NFPA 704.svg

1
2
0
 
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

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). view more...


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Diesel And Urea

Diesel And Urea
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