Orthoformic acid
Stereo skeletal formula of orthoformic acid
Names
Preferred IUPAC name
Methanetriol[1]
Other names
Orthoformic acid
Trihydroxymethane
Identifiers
3D model (JSmol)
ChemSpider
UNII
  • InChI=1S/CH4O3/c2-1(3)4/h1-4H checkY
    Key: RLAHWVDQYNDAGG-UHFFFAOYSA-N checkY
  • InChI=1/CH4O3/c2-1(3)4/h1-4H
    Key: RLAHWVDQYNDAGG-UHFFFAOYAS
  • OC(O)O
Properties
HC(OH)3
Molar mass 64.040 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Infobox references

Orthoformic acid or methanetriol is a hypothetical chemical compound with the formula HC(OH)3. In this molecule, the central carbon atom is bound to one hydrogen and three hydroxyl groups.

Orthoformic acid has not been isolated to date, and is believed to be unstable, decomposing into water and formic acid.[2]

Esters

Methanetriol esters, known as orthoformates, are well known and commercially available.[3][4] Like acetals, they are stable towards bases but easily hydrolyzed in acidic conditions to the alcohol and an ester of formic acid. They are used as mild dehydrating agents. Especially well known are trimethyl orthoformate, triethyl orthoformate, and triisopropyl orthoformate.

See also

References

  1. "Methanetriol - PubChem". NCBI. Retrieved 22 April 2013.
  2. Böhm, S., Antipova, D. and Kuthan, J. (1996), "Study of methanetriol decomposition mechanisms". International Journal of Quantum Chemistry, volume 60, pages 649–655. doi:10.1002/(SICI)1097-461X(1996)60:2<649::AID-QUA3>3.0.CO;2-X
  3. Peter P. T. Sah, Tsu Sheng Ma (1932), ""ESTERS OF ORTHOFORMIC ACID". J. Am. Chem. Soc., volume 54, issue 7, pages 2964–2966 doi:10.1021/ja01346a048
  4. H. W. Post (1943), "The Chemistry of the Aliphatic Orthoesters", Reinhold, 188 pages
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