hydrogenoxalate

Also known as hydrogen oxalate ion, hydrogen oxalate, hydrogen ethanedioate, Hox, oxalate(1-), bioxalate, binoxalate

Hydrogenoxalate or hydrogen oxalate (IUPAC name: 2-Hydroxy-2-oxoacetate) is an anion with chemical formula or , derived from oxalic acid by the loss of a single proton; or, alternatively, from the oxalate anion by addition of a proton. The name is also used for any salt containing this anion. Especially in older literature, hydrogenoxalates may also be referred to as bioxalates, acid oxalates, or monobasic oxalates. Hydrogenoxalate is amphoteric, in that it can react both as an acid or a base.

Chemical data

Formula: C2HO4-
Molecular weight: 89.03 g/mol
IUPAC name: 2-hydroxy-2-oxoacetate
SMILES: C(=O)(C(=O)[O-])O
InChIKey: MUBZPKHOEPUJKR-UHFFFAOYSA-M
XLogP: 0.4
Polar surface area: 77.4 Å²
H-bond donors: 1
H-bond acceptors: 4
Formal charge: -1

via PubChem

Wikidata facts

Mass: 88.98803209191001

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chemical formula: C₂HO₄⁻
canonical SMILES: C(=O)(C(=O)[O-])O
conjugate acid: oxalic acid

Sources (2)

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Encyclopedic overview

3 sections

Contents

Structure
See also
References

Well characterized salts include sodium hydrogenoxalate (), potassium hydrogenoxalate (), ammonium hydrogenoxalate (), rubidium hydrogenoxalate () and dimethylammonium hydrogenoxalate ().

Excerpted from Wikipedia’s “hydrogenoxalate” article, available under the CC BY-SA 4.0 licence.