Iron(III) nitrate

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Iron(III) nitrate
Iron(III) nitrate nonahydrate
Names
IUPAC name
Iron(III) nitrate
Other names
Ferric nitrate
Nitric acid, iron(3+) salt
Identifiers
10421-48-4 YesY

13476-08-9 (hexahydrate)
7782-61-8 (nonahydrate)
ChemSpider 10670706 YesY
Jmol-3D images Image
PubChem 168014
RTECS number NO7175000
UNII N8H8402XOB YesY
Properties
Fe(NO3)3
Molar mass 241.86 g/mol (anhydrous)
403.999 g/mol (nonahydrate)
Appearance Pale violet crystals
hygroscopic
Density 1.68 g/cm3 (hexahydrate)
1.6429 g/cm3(nonahydrate)
Melting point 47.2 °C (117.0 °F; 320.3 K) (nonahydrate)
Boiling point 125 °C (257 °F; 398 K) (nonahydrate)
150 g/100 mL (hexahydrate)
Solubility soluble in alcohol, acetone
Structure
octahedral
Hazards[1]
GHS pictograms Ox. sol. 3Acute tox. 4 (oral); Eye irrit. 1
GHS signal word WARNING
H272, H302, H319
P210, P220, P221, P264, P270, P280, P301+312, P305+351+338, P330, P337+313, P370+378, P501
EU Index not listed
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 1: Exposure would cause irritation but only minor residual injury. E.g., turpentine Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazard OX: Oxidizer. E.g., potassium perchlorateNFPA 704 four-colored diamond
Flash point non-flammable
Related compounds
Related compounds
Iron(III) chloride
Iron(III) sulfate
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY verify (what isYesY/N?)
Infobox references

Iron(III) nitrate, or ferric nitrate, is the chemical compound with the formula Fe(NO3)3. Since it is deliquescent, it is commonly found in its nonahydrate form Fe(NO3)3·9H2O in which it forms colourless to pale violet crystals.

Preparation[edit]

The compound is prepared by treating iron metal powder with nitric acid.

2 Fe + 8 HNO3 = 2 Fe(NO3)3 + 2 NO + 4 H2O.

Applications[edit]

In the chemical laboratory[edit]

Ferric nitrate is the catalyst of choice for the synthesis of sodium amide from a solution of sodium in ammonia:[2]

2 NH3 + 2 Na → 2 NaNH2 + H2

Certain clays impregnated with ferric nitrate have been shown to be useful oxidants in organic synthesis. For example, ferric nitrate on Montmorillonite—a reagent called "Clayfen"—has been employed for the oxidation of alcohols to aldehydes and thiols to disulfides.[3]

Other applications[edit]

Ferric nitrate solutions are used by jewelers and metalsmiths to etch silver and silver alloys.

References[edit]

  1. ^ HSNO Chemical Classification Information Database, New Zealand Environmental Risk Management Authority, retrieved 2010-09-19 .
  2. ^ Hampton, K. G. Harris, T. M.; Hauser, C. R. (1973). "2,4-Nonanedione". Org. Synth. ; Coll. Vol. 5, p. 848  As of 2007, 22 other entries describe similar preparations in Organic Syntheses
  3. ^ 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.
Salts and the ester of the Nitrate ion
HNO3 He
LiNO3 Be(NO3)2 B(NO3)4 RONO2 NO3
NH4NO3
O FNO3 Ne
NaNO3 Mg(NO3)2 Al(NO3)3 Si P S ClONO2 Ar
KNO3 Ca(NO3)2 Sc(NO3)3 Ti(NO3)4 VO(NO3)3 Cr(NO3)3 Mn(NO3)2 Fe(NO3)3 Co(NO3)2,
Co(NO3)3
Ni(NO3)2 Cu(NO3)2 Zn(NO3)2 Ga(NO3)3 Ge As Se Br Kr
RbNO3 Sr(NO3)2 Y Zr(NO3)4 Nb Mo Tc Ru Rh Pd(NO3)2 AgNO3 Cd(NO3)2 In Sn Sb Te I XeFNO3
CsNO3 Ba(NO3)2   Hf Ta W Re Os Ir Pt Au Hg2(NO3)2,
Hg(NO3)2
Tl(NO3)3 Pb(NO3)2 Bi(NO3)3 Po At Rn
Fr Ra   Rf Db Sg Bh Hs Mt Ds Rg Cn Uut Fl Uup Lv Uus Uuo
La Ce(NO3)x Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
Ac Th Pa UO2(NO3)2 Np Pu Am Cm Bk Cf Es Fm Md No Lr