Urea Mineral Data + Say UREA


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General Urea Information

Help on Chemical  Formula: Chemical Formula: CO(NH2)2
Help on Composition: Composition: Molecular Weight = 60.06 gm
   Hydrogen   6.71 %  H
   Carbon    20.00 %  C
   Nitrogen  46.65 %  N
   Oxygen    26.64 %  O
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: CO(NH2)2
Help on IMA Status: IMA Status: Approved IMA 1973
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Synonym: Synonym: ICSD 29364
  PDF 28-2015
 

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Urea Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.83262
Help on Cell Dimensions: Cell Dimensions: a = 5.646, c = 4.701, Z = 2; V = 149.86 Den(Calc)= 1.33
Help on Crystal System: Crystal System: Tetragonal - ScalenohedralH-M Symbol (4 2m) Space Group: P 421m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.98(1), 3.04(0.3), 3.61(0.2),
 

Physical Properties of Urea

Help on Color: Color: Light brown, Light yellow.
Help on Density: Density: 1.33
Help on Streak: Streak: yellow white
 

Optical Properties of Urea

Help on Optical Data: Optical Data: Uniaxial (+), w=1.484, e=1.603, bire=0.1190.
 

Calculated Properties of Urea

Help on Electron Density: Electron Density:

relectron=1.42 gm/cc
note: rUrea =1.33 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.46707
Boson Index = 0.53293
Help on Photoelectric: Photoelectric:

PEUrea = 0.26 barns/electron
U=PEUrea x relectron= 0.37 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Urea is Not Radioactive

 

Urea Classification

Help on  Dana Class: Dana Class: 50.4.6.1 (50)Salts of Organic Acids
  (50.4)with miscellaneous formulae
  (50.4.6)Dana Group
 
50.4.6.1 Urea CO(NH2)2 P 421m 4 2m
Help on  Strunz Class: Strunz Class: IX/D.01-10 IX - Organic compunds
  IX/D - Compounds with N, C and water
  IX/D.01 - Urea - Guanine series
 
IX/D.01-10 Urea CO(NH2)2 P 421m 4 2m
 
IX/D.01-20 Acetamide CO(CH3)(NH2) R 3c 3m
 
IX/D.01-25 Tinnunculite* C10H12N6O8(?) Unk Ortho
 
IX/D.01-30 Kladnoite C6H4(CO)2NH P 21/n 2/m
 
IX/D.01-40 Uricite C5H4N4O3 P 21/a 2/m
 
IX/D.01-50 Guanine C5H3(NH2)N4O P 21/n 2/m
 

Other Urea Information

Help on References: References: PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Urea :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris

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Print or Cut-and-Paste your Urea Specimen Label here :

Urea

CO(NH2)2
Dana No: 50.4.6.1 Strunz No: IX/D.01-10
Locality:

 

Notes:

 

 
   
 
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