Molecule
Name
Oxalate ion
IUPAC name
Ethanedioate
Secondary names
Oxalate anion, Ethanedioate, Oxalic acid dianion, Ethanedioic acid dianion
InChI
InChI=1S/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6)/p-2
InChI key
MUBZPKHOEPUJKR-UHFFFAOYSA-L
CAS number
338-70-5
Formula
C2O24
Chemical formula
C2O4-2
Structural formula
C(=O)(C(=O)[O-])[O-]
Charge
-2
Unpaired electrons
0
  Atom Name Number
C Carbon 2
O Oxygen 2
O Oxide anion 2
Relations
  • no
Isotope mixture type
terrestrial abundance
Molar mass
88.019 g/mol
Protic
aprotic
Polarity
ionic
Molecule symmetry
unknown
Case
nonlinear-polyatomic
Chemical functions
  Function Number
RC(=O)O 2
Chemical bonds
  Bond Number
1
>C=O 2
\eqslantgtr C-O^- 2