Formic acid

CH2O2CAS 64-18-646.02 g/mol

OOH
Carboxylic acid

Properties

Molecular formula
CH2O2
Molar mass
46.02 g/mol
Exact mass
46.0055 Da
Density
1.22 g/mL (at 20 °C)
Melting point
8.4 °C
Boiling point
100.5 °C
logP
-0.30Crippen estimate
Polar surface area
37.3 Ų
H-bond donors / acceptors
1 / 1
Rotatable bonds
0

Hazards

No GHS classification is on file for this compound. That is not evidence that it is harmless. Search the SDS library

Identifiers

CAS number
64-18-6
SMILES
O=CO
InChIKey
BDAGIHXWWSANSR-UHFFFAOYSA-N
InChI
InChI=1S/CH2O2/c2-1-3/h1H,(H,2,3)

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Names and synonyms

19 names · show all
  • Aminic acid
  • Formylic acid
  • Hydrogen carboxylic acid
  • Methanoic acid
  • Bilorin
  • Collo-bueglatt
  • Collo-didax
  • Formisoton
  • Myrmicyl
  • Formira
  • Add-F
  • Methanoic acid monomer
  • Ameisensaure
  • Sybest
  • Wonderbond hardener M 600L
  • Ensilox
  • Amasil
  • Amasil 85
  • Add-F (silage additive)

Safety data sheets

One stored sheet lists this compound in section 3, matched by the CAS number 64-18-6. Each row opens the sheet with its composition and PDF.

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Work with Formic acid

Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

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