Iron(III) nitrate

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Iron(III) nitrate
Image:Iron(III) nitrate.jpg
General
Systematic name Iron(III) nitrate nonahydrate
Other names Ferric nitrate
Molecular formula Fe(NO3)3·9H2O
Molar mass 404 g/mol
Appearance Pale violet crystals
CAS number [7782-61-8]
Properties
Density and phase 1.68 g/cm3, Solid
Solubility Soluble in Water, alcohol, acetone
Other solvents ethanol, acetone
Melting point 47.2° C
Decomposition temperature 125 °C
Odour slight nitric acid odour
Structure
Coordination
geometry
octahedral
Hazards
MSDS External link
Main hazards Oxidizing Agent
NFPA 704

2
3
0
OX
R/S statement R: 8-36/37/38
S: 17-26-36
RTECS number NO7175000
Supplementary data page
Thermodynamic
data
Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
Related compounds FeCl3
Except where noted otherwise, data are given for
materials in their standard state (at 25°C, 100 kPa)
Infobox disclaimer and references

Iron(III) nitrate, or ferric nitrate, is the chemical compound with the formula Fe(NO3)3·(H2O)9. It forms colourless to pale violet crystals that are deliquescent, i.e. crystals form a pool of water if left in open to the atmosphere. The compound is prepared simply by treating iron metal or iron oxides with nitric acid.

Ferric nitrate is the catalyst of choice for the synthesis of sodium amide from a solution of sodium in ammonia:[1]

NH3 + Na → NaNH2 + 0.5 H2

Ferric nitrate supported on certain clays have been shown to be useful oxidants in organic synthesis. For example, this reagent, called "Clayfen" has been employed for the oxidation of alcohols to aldehydes and thiols to disulfides.[2]

[edit] References

  1. ^ Hampton, K. G. Harris, T. M.; Hauser, C. R. "2,4-Nonandione" Organic Syntheses, Collected Volume 5, p.848 (1973). http://www.orgsyn.org/orgsyn/pdfs/CV5P0848.pdf. As of 2007, 22 other entries describe similar preparations in Organic Syntheses
  2. ^ Cornélis, A. Laszlo, P.; Zettler, M. W. "Iron(III) Nitrate–K10 Montmorillonite Clay" in Encyclopedia of Reagents for Organic Synthesis (Ed: L. Paquette) 2004, J. Wiley & Sons, New York. DOI: 10.1002/047084289.

[edit] External links

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