Oxalic acid

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Oxalic acid
Structural formula o oxalic acid
Oxalic-acid-3D-balls.png
Space-fillin model o oxalic acid
Names
IUPAC name
ethanedioic acid
Ither names
oxalic acid
Identifiers
3D model (JSmol)
3DMet B00059
385686
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.005.123
EC Nummer 205-634-3
Gmelin Reference 2208
KEGG
MeSH Oxalic+acid
RTECS nummer RO2450000
UNII
UN nummer 3261
Properties
C2H2O4
Molar mass 90.03 g·mol−1
(anhydrous)
126.07 g mol−1 (dihydrate)
Appearance White crystals
Density 1.90 g cm−3 (anhydrous)
1.653g cm−3 (dihydrate)
Meltin pynt 102 °C (216 °F; 375 K)
14.3 g/100ml (25 °C)
Solubility 23.7 g/100ml (15 °C) in ethanol
1.4 g/100ml (15 °C) in diethyl ether [1]
Acidity (pKa) 1.25, 4.14[2]
Hazards
Main hazards Toxic
NFPA 704
Flammability code 1: Must be pre-heatit afore igneetion can occur. Flash pynt ower 93 °C (200 °F). E.g., canola ileHealth code 3: Short exposur could cause serious temporary or residual injury. E.g., chlorine gasReactivity (yellae): no hazard codeSpecial hazards (white): no codeNFPA 704 four-colored diamond
1
3
Flash pynt 166 °C (331 °F; 439 K)
Relatit compoonds
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Oxalic acid is an organic compoond wi the formula H2C2O4.

References[eedit | eedit soorce]

  1. Radiant Agro Chem. "Oxalic Acid MSDS". 
  2. Bjerrum, J., et al. Stability Constants, Chemical Society, London, 1958.