Manganese(II) acetate

Manganese(II) acetate are chemical compounds with the formula Mn(CH₃CO₂)₂.(H₂O)_n where n = 0, 2, 4.. It is used as a catalyst and as fertilizer.[3]

Manganese(II) acetate[1]

Names
IUPAC name Manganese(II) acetate
Other names Manganese diacetate
Identifiers
CAS Number	638-38-0 (anhydrous)^Y 19513-05-4 (dihydrate)^N 6156-78-1 (tetrahydrate)^Y
3D model (JSmol)	Interactive image
ChemSpider	12008^Y
ECHA InfoCard	100.010.305
PubChem CID	12525
UNII	0V6E9Q2I0Y (anhydrous)^Y 9TO51D176N (tetrahydrate)^Y
CompTox Dashboard (EPA)	DTXSID5027279
InChI InChI=1S/2C2H4O2.Mn/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2^Y Key: UOGMEBQRZBEZQT-UHFFFAOYSA-L^Y
SMILES CC([O-])=O.CC([O-])=O.[Mn+2]
Properties
Chemical formula	Mn(CH3CO2)2 (anhydrous) Mn(CH3CO2)2·4H2O (tetrahydrate)
Molar mass	173.027 g/mol (anhydrous) 245.087 g/mol (tetrahydrate)
Appearance	white crystals (anhydrous) light pink monoclinic crystals (tetrahydrate)
Density	1.74 g/cm^3 (anhydrous) 1.59 g/cm^3 (tetrahydrate)
Melting point	210 °C (410 °F; 483 K) (anhydrous) 80 °C (tetrahydrate)
Solubility	soluble in water (about 700g/L at 20°C for tetrahydrate), methanol, acetic acid (anhydrous) soluble in water, ethanol (tetrahydrate)
Magnetic susceptibility (χ)	+13,650·10^−6 cm^3/mol
Hazards
NFPA 704 (fire diamond)	0 1 0
Flash point	> 130 °C (266 °F; 403 K) (tetrahydrate)
Lethal dose or concentration (LD, LC):
LD50 (median dose)	2940 mg/kg (rat, oral)[2]
Related compounds
Other anions	Manganese(II) fluoride Manganese(II) chloride Manganese(II) bromide
Other cations	Zinc acetate Mercury(II) acetate Silver acetate
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

Reactions

Manganese(II) acetate can be formed by treating either manganese(II,III) oxide or manganese(II) carbonate with acetic acid:[4]

MnCO₃ + 2 CH₃CO₂H → Mn(CH₃CO₂)₂ + CO₂ + H₂O

Structure

The anhydrous material and dihydrate Mn(CH₃CO₂)₂^.2H₂O are coordination polymers. The dihydrate has been characterized by X-ray crystallography. Each Mn(II) center is surrounded by six oxygen centers provided by aquo ligands and acetates.

Subunit of the structure of the dihydrate of manganese(II) acetate.[5]

References

1. Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 3–354, 4–68, ISBN 0-8493-0594-2
2. "Manganese compounds (as Mn)". Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
3. Thomas Scott; Mary Eagleson (1994), Concise encyclopedia chemistry, Walter de Gruyter, p. 620, ISBN 3-11-011451-8, retrieved 2009-07-20
4. Arno H. Reidies (2002). "Manganese Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a16_123.CS1 maint: uses authors parameter (link)
5. Chih-Yi Cheng, Sue-Lein Wang (1991). "Structure of manganese acetate dihydrate". Acta Crystallographica Section C. 47: 1734. doi:10.1107/S0108270191002202.CS1 maint: uses authors parameter (link)

Acetyl halides and salts of the acetate ion
AcOH																	He
LiOAc	Be(OAc)2 BeAcOH											B(OAc)3	AcOAc ROAc	NH4OAc	AcOOH	FAc	Ne
NaOAc	Mg(OAc)2											Al(OAc)3 ALSOL Al(OAc)2OH Al2SO4(OAc)4	Si	P	S	ClAc	Ar
KOAc	Ca(OAc)2	Sc(OAc)3	Ti(OAc)4	VO(OAc)3	Cr(OAc)2 Cr(OAc)3	Mn(OAc)2 Mn(OAc)3	Fe(OAc)2 Fe(OAc)3	Co(OAc)2, Co(OAc)3	Ni(OAc)2	Cu(OAc)2	Zn(OAc)2	Ga(OAc)3	Ge	As(OAc)3	Se	BrAc	Kr
RbOAc	Sr(OAc)2	Y(OAc)3	Zr(OAc)4	Nb	Mo(OAc)2	Tc	Ru(OAc)2 Ru(OAc)3 Ru(OAc)4	Rh2(OAc)4	Pd(OAc)2	AgOAc	Cd(OAc)2	In	Sn(OAc)2 Sn(OAc)4	Sb(OAc)3	Te	IAc	Xe
CsOAc	Ba(OAc)2		Hf	Ta	W	Re	Os	Ir	Pt(OAc)2	Au	Hg2(OAc)2, Hg(OAc)2	TlOAc Tl(OAc)3	Pb(OAc)2 Pb(OAc)4	Bi(OAc)3	Po	At	Rn
Fr	Ra		Rf	Db	Sg	Bh	Hs	Mt	Ds	Rg	Cn	Nh	Fl	Mc	Lv	Ts	Og
		↓
		La(OAc)3	Ce(OAc)x	Pr	Nd	Pm	Sm(OAc)3	Eu(OAc)3	Gd(OAc)3	Tb	Dy(OAc)3	Ho(OAc)3	Er	Tm	Yb(OAc)3	Lu(OAc)3
		Ac	Th	Pa	UO2(OAc)2	Np	Pu	Am	Cm	Bk	Cf	Es	Fm	Md	No	Lr