Iron(II) acetate

Iron(II) acetate  Skeletal formula of iron(II) acetate

Names
IUPAC name

Iron(II) acetate

Other names

Ferrous acetate

Identifiers

CAS Number

* 3094-87-9
* 19807-28-4 tetrahydrate

3D model (JSmol)

* coordination form: Interactive image
* ionic form: Interactive image

ChemSpider |

* 17323 Y

ECHA InfoCard | 100.019.492

PubChem CID

* 18344

RTECS number |

* AI3850000

UNII |

* L80I7M6D3Q Y

CompTox Dashboard (EPA)

* DTXSID5037656

InChI

* InChI=1S/2C2H4O2.Fe/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2 Y

Key: LNOZJRCUHSPCDZ-UHFFFAOYSA-L Y

* InChI=1/2C2H4O2.Fe/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2

Key: LNOZJRCUHSPCDZ-NUQVWONBAS

SMILES

* coordination form: CC(O1)O[Fe]12OC(O2)C

* ionic form: CC(=O)[O-].[Fe+2].CC(=O)[O-]

Properties

Chemical formula

| C4H6FeO4
Molar mass | 173.933 g·mol−1
Appearance  | White crystals (anhydrous)
Light green crystals (tetrahydrate)
Odor | Odorless
Density | 1.734 g/cm3 (−73 °C)[1]
Melting point | 190–200 °C (374–392 °F; 463–473 K)
decomposes[2][3]

Solubility in water

| Soluble[2]
Structure

Crystal structure

| Orthorhombic, oP75 (200 K)

Space group

| Pbcn, No. 60 (200 K)[1]

Point group

| 2/m 2/m 2/m (200 K)

Lattice constant

a = 18.1715(4) Å, b = 22.1453(5) Å, c = 8.2781(2) Å (200 K)

α = 90°, β = 90°, γ = 90°

Hazards
GHS labelling:

Pictograms

| [3]

Signal word

| Warning

Hazard statements

| H315, H319, H335[3]

Precautionary statements

| P261, P305+P351+P338[3]
NFPA 704 (fire diamond)  |

[4]

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

N verify (what is YN ?)

Infobox references

Chemical compound

Iron(II) acetate describes compounds with formula Fe(CH3CO2)2*(H2O)x where x can be 0 (anhydrous) or 4 (tetrahydrate). The anhydrous compound is a white solid, although impure samples can be slightly colored.[1] The tetrahydrate is light green solid that is highly soluble in water.

## Preparation and structure

[edit]

Although anhydrous ferrous acetate can be viewed as a simple salt, X-ray crystallography reveals a complicated polymeric structure.[1] Color code: red = O, blue = Fe, gray = C, white = H.

Iron powder reacts with acetic acid to give the ferrous acetate, with evolution of hydrogen gas:[5][1]

Fe + 2 CH3CO2H → Fe(CH3CO2)2 \+ H2

Reaction of scrap iron with acetic acid affords a brown mixture of various iron(II) and iron(III) acetates that are used in dyeing.[6]

It can also be made from the insoluble, olive green, Iron(II) carbonate.[citation needed]

It adopts a polymeric structure with octahedral Fe(II) centers interconnected by acetate ligands. It is a coordination polymer.[1]

## Uses

[edit]

Ferrous acetate is used as a mordant by the dye industry. Ebonizing wood is one such process.[7]

## References

[edit]

1. ^ a b c d e f Weber, Birgit; Betz, Richard; Bauer, Wolfgang; Schlamp, Stephan (2011). "Crystal Structure of Iron(II) Acetate". Zeitschrift für anorganische und allgemeine Chemie. 637: 102–107\. doi:10.1002/zaac.201000274.
2. ^ a b Lide, David R., ed. (2009). CRC Handbook of Chemistry and Physics (90th ed.). Boca Raton, Florida: CRC Press. ISBN 978-1-4200-9084-0.
3. ^ a b c d Sigma-Aldrich Co., Iron(II) acetate. Retrieved on 2014-05-03.
4. ^ "MSDS of Ferrous acetate". fishersci.ca. Fair Lawn: Fisher Scientific. Retrieved 2014-08-02.
5. ^ "Synthesis of Iron(II) acetate hydrate (ferrous acetate)". Archived from the original on 2013-08-25. Retrieved 2009-01-07.
6. ^ Wildermuth, Egon; Stark, Hans; Friedrich, Gabriele; Ebenhöch, Franz Ludwig; Kühborth, Brigitte; Silver, Jack; Rituper, Rafael (2000). "Iron Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a14_591. ISBN 978-3-527-30673-2.
7. ^ Ebonizing Wood with Ferric Acetate

* v
* t
* e

Iron compounds

Fe(−II)|

* H2Fe(CO)4
* Na2Fe(CO)4

Fe(0)|

* Fe(CO)5
* Fe2(CO)9
* Fe3(CO)12
* Fe(CO)3CH3COC2H2C6H6

Fe(I)|

* FeH

| Organoiron(I) compounds|

* (C5H5FeCO)2(CO)2

|

Fe(0,II)|

* Fe3C

Fe(II)|

* FeH2
* Mg2FeH6
* FeF2
* FeCl2
* Fe(ClO4)2
* FeBr2
* FeI2
* FeO
* Fe(OH)2
* FeS
* FeSO4
* (NH4)2Fe(SO4)2·6H2O
* FeSe
* FeSeO4
* Fe(NO3)2
* Fe3(PO4)2
* FeSi2
* Fe(BF4)2
* FeCr2O4
* FeMoO4
* FeTiO3
* FeCO3
* FeC2O4
* Fe(C2H3O2)2
* Fe(C3H5O3)2
* FeC6H6O7
* FeC12H22O14
* FeI2(CO)4
* K4Fe(CN)6
* Na3Fe(C2O4)3 / K2Fe(C2O4)2

| Organoiron(II) compounds|

* Fe(C5H5)2
* Fe(C5H5)(CO)2I
* Fe(C5H4P(C6H5)2)2
* C4H4Fe(CO)3
* C4H6Fe(CO)3

|

Fe(0,III)|

* FeSi
* FeGe

Fe(II,III)|

* Fe3O4
* Fe3S4
* Prussian blue

Fe(III)|

* FeI3
* FeBr3
* FeCl3
* FeF3
* FeP
* Fe(NO3)3
* Fe(acac)3
* FeOCl
* [(C2H5)4N][O(FeCl3)2]
* FeO(OH)
* FePO4
* Fe4(P2O7)3
* Fe2(CrO4)3
* Fe2(C2O4)3
* Fe2O3
* Fe2(SeO3)3
* Fe2S3
* Fe2(SO4)3
* Fe(N3)3
* NH4Fe(SO4)2·12H2O
* K3Fe(CN)6
* K3Fe(C2O4)3

| Organoiron(III) compounds|

* Fe(C5H5)2BF4
* C6H8O7·xFe3+·yNH3
* C
54H
105FeO

|

Fe(IV)|

* FeF4

Fe(VI)|

* K2FeO4
* BaFeO4

Purported|

* Hemolithin (protein)

* v
* t
* e

Acetyl halides and salts of the acetate ion

| AcOH |  |  |  | He

|
|
|
|

LiOAc | Be(OAc)2
Be4O(OAc)6 | B(OAc)3
B2O(OAc)4 | AcOAc
ROAc | NH4OAc | AcOOH | FAc
FOAc | Ne
NaOAc
NaH(OAc)2 | Mg(OAc)2 | Al(OAc)3
ALSOL
Al(OAc)2OH
Al(OH)2OAc
Al2SO4(OAc)4 | Si  | P  | S  | ClAc
ClOAc | Ar
KOAc | Ca(OAc)2 |  | Sc(OAc)3 | Ti(OAc)4 | VO(OAc)2 | Cr(OAc)2
Cr(OAc)3 | Mn(OAc)2
Mn(OAc)3 | Fe(OAc)2
Fe(OAc)3 | Co(OAc)2 | Ni(OAc)2 | CuOAc
Cu(OAc)2 | Zn(OAc)2 | Ga(OAc)3 | Ge  | As(OAc)3 | Se  | BrAc
BrOAc | Kr
RbOAc | Sr(OAc)2 |  | Y(OAc)3 | Zr(OAc)4 | Nb  | Mo(OAc)2 | Tc  | Ru2(OAc)4Cl
Ru(OAc)3 | Rh2(OAc)4 | Pd(OAc)2 | AgOAc | Cd(OAc)2 | In(OAc)3 | Sn(OAc)2
Sn(OAc)4 | Sb(OAc)3 | Te  | IAc
IOAc
I(OAc)3 | Xe
CsOAc | Ba(OAc)2 | *  | Lu(OAc)3 | Hf  | Ta  | W  | Re  | Os  | Ir  | Pt(OAc)2 | Au(OAc)3 | Hg2(OAc)2
Hg(OAc)2 | TlOAc
Tl(OAc)3 | Pb(OAc)2
Pb(OAc)4 | Bi(OAc)3 | Po  | At  | Rn
Fr  | Ra  | **  | Lr  | Rf  | Db  | Sg  | Bh  | Hs  | Mt  | Ds  | Rg  | Cn  | Nh  | Fl  | Mc  | Lv  | Ts  | Og

*  | La(OAc)3 | Ce(OAc)3 | Pr(OAc)3 | Nd(OAc)3 | Pm  | Sm(OAc)3 | Eu(OAc)3 | Gd(OAc)3 | Tb(OAc)3 | Dy(OAc)3 | Ho(OAc)3 | Er(OAc)3 | Tm(OAc)3 | Yb(OAc)3
**  | Ac(OAc)3 | Th(OAc)4 | Pa  | UO2(OAc)2 | NpO2(OAc)2 | PuO2(OAc)2 | Am  | Cm  | Bk  | Cf  | Es  | Fm  | Md  | No
*[CID]: Compound ID
*[EPA]: U.S. Environmental Protection Agency
*[H315]: H315: Causes skin irritation
*[H319]: H319: Causes serious eye irritation
*[H335]: H335: May cause respiratory irritation
*[P261]: P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
*[P305+P351+P338]: P305+P351+P338: IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
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