Manganese(II) acetate

Manganese(II) acetate[1]
IUPAC name Manganese(II) acetate
Other names Manganese diacetate
Identifiers
CAS number	638-38-0, (anhydrous) [6156-78-1] (tetrahydrate)
Jmol-3D images	Image 1
SMILES CC([O-])=O.CC([O-])=O.[Mn2+]
Properties
Molecular formula	Mn(CH3COO)2 (anhydrous) Mn(CH3COO)2·4H2O (tetrahydrate)
Molar mass	173.027 g/mol (anhydrous) 245.087 g/mol (tetrahydrate)
Appearance	red crystals (anhydrous) red monoclinic crystals (tetrahydrate)
Density	? g/cm3 (anhydrous) 1.59 g/cm3 (tetrahydrate)
Melting point	210°C (anhydrous) 80°C (tetrahydrate)
Solubility	soluble in water, methanol, acetic acid (anhydrous) soluble in water, ethanol (tetrahydrate)
Related compounds
Other anions	Manganese(II) fluoride Manganese(II) chloride Manganese(II) bromide
Other cations	Zinc acetate Mercury(II) acetate Silver acetate
Y acetate (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Manganese(II) acetate is the chemical compound with the formula Mn(CH₃COO)₂. It is used as a desiccant, a catalyst, and as fertilizer.^[2]

Reactions

Manganese(II) acetate can be formed by reacting acetic acid with either manganese(II,III) oxide or manganese(II) carbonate^[2][3]:

Mn₃O₄ + 2CH₃COOH → Mn(CH₃COO)₂ + Mn₂O₃ + H₂O

If manganese(II,III) oxide is used, manganese(III) oxide is produced as a byproduct.

If the anhydrous form needs to be produced, manganese(II) nitrate can be reacted with acetic anhydride.^[2]

References

1. ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 3–354, 4–68, ISBN 0849305942 
2. ^ ^{a b c} Thomas Scott; Mary Eagleson (1994), Concise encyclopedia chemistry, Walter de Gruyter, p. 620, ISBN 3110114518, http://books.google.com/?id=Owuv-c9L_IMC&pg=PA620&dq=%22Manganese%28II%29+acetate%22, retrieved 2009-07-20 
3. ^ Patnaik, Pradyot (2003), Handbook of Inorganic Chemical Compounds, McGraw-Hill Professional, pp. 81–82, ISBN 0070494398, http://books.google.com/?id=Xqj-TTzkvTEC&pg=PA552&dq=%22Manganese%28II%29+acetate%22, retrieved 2009-07-20