Magnesium oxalate

Magnesium oxalate is an organic compound comprising a magnesium cation with a 2+ charge bonded to an oxalate anion. It has the chemical formula MgC2O4. Magnesium oxalate is a white solid that comes in two forms: an anhydrous form and a dihydrate form where two water molecules are complexed with the structure. Both forms are practically insoluble in water and are insoluble in organic solutions.

Magnesium oxalate
Names
IUPAC name
magnesium oxalate
Systematic IUPAC name
magnesium oxalate
Other names
  • magnesium ethanedioate
  • ethanedioic acid, magnesium salt (1:1)
  • (Dihydrate)
  • magnesium oxalate-2-hydrate
  • magnesium oxalate dihydrate
  • oxalic acid magnesium salt dihydrate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.008.121
EC Number
  • 208-932-1
UNII
UN number 2811
  • InChI=
    • 1S/C2H2O4.Mg/c3-1(4)2(5)6;/h(H,3,4)(H,5,6);/q;+2/p-2
    • 1S/C2H2O4.Mg.2H2O/c3-1(4)2(5)6;;;/h(H,3,4)(H,5,6);;2*1H2/q;+2;;/p-2 (Dihydrate)
  • C(=O)(C(=O)[O-])[O-].[Mg+2]
Properties
  • MgC2O4
  • MgC2O4•2H2O (Dihydrate)
Molar mass
  • 112.324 g/mol
  • 148.354 g/mol (Dihydrate)
Appearance white solid
Density 2.45 g/cm3
Melting point between 420 and 620 °C (788 and 1,148 °F; 693 and 893 K)
150 °C (302 °F; 423 K) (dihydrate) both decompose
0.038g/100g H2O (anhydrous and dihydrate)
8.5 × 10−5 for MgC
2O
4
Solubility insoluble in organics
Vapor pressure 2.51×10−6 mmHg
Thermochemistry
-1269.0 kJ mol−1
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Irritant
NFPA 704 (fire diamond)
1
0
0
Flash point Not Applicable
Not Applicable
Related compounds
Related compounds
 Magnesium Oxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.