Back أكسالات المغنيسيوم Arabic Magnesiumoxalat German Oxalate de magnésium French Оксалат магния Russian மக்னீசியம் ஆக்சலேட்டு Tamil Magnesi oxalat Vietnamese 草酸镁 Chinese

Magnesium oxalate

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
[1]
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.008.121 Edit this at Wikidata
EC Number
UNII
UN number 2811 [4]
  • 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)
    [5][6]
  • C(=O)(C(=O)[O-])[O-].[Mg+2]
Properties
  • MgC2O4
  • MgC2O4•2H2O (Dihydrate)
Molar mass
  • 112.324 g/mol
  • 148.354 g/mol (Dihydrate)
[2]
Appearance white solid [2]
Density 2.45 g/cm3[5]
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[8]
0.038g/100g H2O (anhydrous and dihydrate)[2]
8.5 × 10−5 for MgC
2O
4[7]
Solubility insoluble in organics
Vapor pressure 2.51×10−6 mmHg[3]
Thermochemistry
-1269.0 kJ mol−1[2]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Irritant
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
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).

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.

  1. ^ a b c "Oxalates-Compound Summary". Retrieved 16 November 2012.
  2. ^ a b c d e f g CRC Handbook of Chemistry and Physics (93 ed.). 2012–2013.
  3. ^ a b "Magnesium Oxalate Chemical Formula, Chemical CAS 547-66-0". Retrieved 16 November 2012.
  4. ^ Cite error: The named reference Source7 was invoked but never defined (see the help page).
  5. ^ a b "Magnesium Oxalate". Retrieved 16 November 2012.
  6. ^ "Magnesium Oxalate". Retrieved 16 November 2012.
  7. ^ Euler. "Ksp Table: Solubility product constants near 25 °C". chm.uri.edu. Retrieved 10 June 2021.
  8. ^ Gadala, Ahmed (1984). "Kinetics of the Decomposition of Hydrated Oxalates of Calcium and Magnesium in Air". Thermochimica Acta. 74 (1–3): 255–272. doi:10.1016/0040-6031(84)80027-1.
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