Manganese(II) acetate
{{chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 486589107
| Name = Manganese(II) acetate
| ImageFile = Manganese acetate.png
| ImageSize =
| ImageName =
| IUPACName = Manganese(II) acetate
| OtherNames = Manganese diacetate
{{Citation
| last = Lide
| first = David R.
| author-link =
| publication-date =
| year = 1998
| title = Handbook of Chemistry and Physics
| edition = 87
| volume =
| series =
| publication-place = Boca Raton, FL
| place =
| publisher = CRC Press
| id =
| isbn = 0-8493-0594-2
| doi =
| oclc =
| pages = 3–354, 4–68
| url =
| accessdate =
}}
|Section1={{Chembox Identifiers
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 638-38-0
| CASNo_Comment = (anhydrous)
| CASNo2_Ref = {{cascite|changed|??}}
| CASNo2 = 19513-05-4
| CASNo2_Comment = (dihydrate)
| CASNo3_Ref = {{cascite|correct|CAS}}
| CASNo3 = 6156-78-1
| CASNo3_Comment = (tetrahydrate)
| UNII_Ref = {{cascite|correct|CAS}}
| UNII = 0V6E9Q2I0Y
| UNII_Comment = (anhydrous)
| UNII3_Ref = {{fdacite|correct|FDA}}
| UNII3 = 9TO51D176N
| UNII3_Comment = (tetrahydrate)
| SMILES = CC([O-])=O.CC([O-])=O.[Mn+2]
| RTECS =
| EINECS =
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 12008
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/2C2H4O2.Mn/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = UOGMEBQRZBEZQT-UHFFFAOYSA-L
| PubChem = 12525
}}
|Section2={{Chembox Properties
| Formula = {{chem2|Mn(CH3CO2)2}} (anhydrous)
{{chem2|Mn(CH3CO2)2*4H2O}} (tetrahydrate)
| MolarMass = 173.027 g/mol (anhydrous)
245.087 g/mol (tetrahydrate)
| Appearance = white crystals (anhydrous)
light pink monoclinic crystals (tetrahydrate)
| Density = 1.74 g/cm3 (anhydrous)
1.59 g/cm3 (tetrahydrate)
| MeltingPtC = 210
| MeltingPt_notes = (anhydrous)
80 °C (tetrahydrate)
| BoilingPt =
| SolubleOther = soluble in water (about 700g/L at 20°C for tetrahydrate), methanol, acetic acid (anhydrous)
soluble in water, ethanol (tetrahydrate)
| MagSus = +13,650·10−6 cm3/mol
}}
|Section3={{Chembox Structure
| Coordination =
| CrystalStruct =
}}
|Section7={{Chembox Hazards
| ExternalSDS =
| NFPA-H = 1
| NFPA-F = 0
| NFPA-R = 0
| FlashPt = >
| FlashPtC = 130
| FlashPt_notes = (tetrahydrate)
| LD50 = 2940 mg/kg (rat, oral){{IDLH|7439965|Manganese compounds (as Mn)}}
}}
|Section8={{Chembox Related
| OtherAnions = Manganese(II) fluoride
Manganese(II) chloride
Manganese(II) bromide
| OtherCations = Zinc acetate
Mercury(II) acetate
Silver acetate
}}
}}
Manganese(II) acetate are chemical compounds with the formula {{chem2|Mn(CH3CO2)2*(H2O)n}} where n = 0, 2, 4. These materials are white or pale pink solids. Some of these compounds are used as a catalyst and as fertilizer.{{Citation
| title = Concise Encyclopedia Chemistry
| author = Thomas Scott
| author2 = Mary Eagleson
| publisher = Walter de Gruyter
| year = 1994
| isbn = 3-11-011451-8
| page = 620
| url = https://books.google.com/books?id=Owuv-c9L_IMC&dq=%22Manganese%28II%29+acetate%22&pg=PA620
| accessdate = 2009-07-20
}}
Preparation
Manganese(II) acetate can be formed by treating either manganese(II,III) oxide or manganese(II) carbonate with acetic acid:{{cite encyclopedia|author=Arno H. Reidies|title=Manganese Compounds|encyclopedia=Ullmann's Encyclopedia of Industrial Chemistry|year=2002|publisher=Wiley-VCH|place= Weinheim|doi=10.1002/14356007.a16_123|isbn=3527306730 }}
:{{chem2|Mn3O4 + 2 CH3CO2H → Mn(CH3CO2)2 + Mn2O3 + H2O}}
:{{chem2|MnCO3 + 2 CH3CO2H → Mn(CH3CO2)2 + CO2 + H2O}}
Structure
The anhydrous material and dihydrate {{chem2|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.
References
{{reflist}}
{{Manganese compounds}}
{{Acetates}}
{{DEFAULTSORT:Manganese(II) Acetate}}