Magnesium formate
{{more citations needed|date=November 2015}}
{{Chembox
| ImageFile = Magnesium formate.svg
| ImageSize = 200px
| IUPACName = Magnesium diformate
| OtherNames =
| Section1 = {{Chembox Identifiers
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 557-39-1
| CASNo1_Ref = {{cascite|correct|CAS}}
| CASNo1 = 6150-82-9
| CASNo1_Comment = (dihydrate)
| PubChem = 68404
| EC_number = 209-173-9
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = 3B917PAF9I
| UNII1_Ref = {{fdacite|correct|FDA}}
| UNII1 = 3Z0F17XFMN
| UNII1_Comment = (dihydrate)
| ChemSpiderID = 61687
| StdInChI=1S/2CH2O2.Mg/c2*2-1-3;/h2*1H,(H,2,3);/q;;+2/p-2
| StdInChIKey = GMDNUWQNDQDBNQ-UHFFFAOYSA-L
| SMILES = C(=O)[O-].C(=O)[O-].[Mg+2]
}}
|Section2={{Chembox Properties
| Formula = Mg(HCO2)2
| MolarMass =
| Appearance =
| Density =
| MeltingPt =
| BoilingPt =
| Solubility= 14 g/100g at 0 °C
14.4 g/100g at 20 °C
20.5 g/100g at 80 °C
}}
| Section3 =
}}
Magnesium formate is a magnesium salt of formic acid. It is an inorganic compound. It consists of a magnesium cation and formate anion. It can be prepared by reacting magnesium oxide with formic acid. The dihydrate is formed when crystallizing from the solution. The dihydrate dehydrates at 105 °C to form anhydrate, then decomposes at 500 °C to produce magnesium oxide.{{cite journal|url=http://linkinghub.elsevier.com/retrieve/pii/0040603179850698|issue=1–2|doi=10.1016/0040-6031(79)85069-8|pages=339–350|title=The thermal decomposition of metal formates. II. Solid state thermal decomposition studies on magnesium formate dihydrate|volume=30|journal=Thermochimica Acta|date=May 1979|issn=0040-6031|accessdate=2018-08-09|author=D. Dollimore, J.P. Gupta, D.V. Nowell|archive-date=2018-06-30|archive-url=https://web.archive.org/web/20180630061836/https://linkinghub.elsevier.com/retrieve/pii/0040603179850698|url-status=live|url-access=subscription}} Magnesium formate can be used for organic syntheses.{{cite book | last1=Brückner | first1=Reinhard | last2=Zettlmeier | first2=Wolfgang | title=Reaktionsmechanismen organische Reaktionen, Stereochemie, moderne Synthesemethoden | publication-place=Berlin | date=2015 | isbn=978-3-662-45683-5 | oclc=901537772 | language=de|page=316}}