HCOOH (aq) → CO (g) + H₂O (l)

This is a gas evolution reaction, CO is the formed gas.

Reactants:

• HCOOH – Formic acid , Methanoic acid
  • Other names: Carbonous acid; Formylic acid; Hydrogen carboxylic acid; Hydroxy(oxo)methane; Metacarbonoic acid; Oxocarbinic acid; Oxomethanol , Hydrogen carboxylic acid , Aminic acid ... show moreFormate , Formylic acid , Methoic acid , HCOOH , H-COOH , HCO2H , Bilorin , Sodium Formate , Formylate , Wonderbond Hardener M 600L , Methanoic acid monomer , Collo-Didax , Methanoate , Aminate , Add-F , Collo-Bueglatt , Sybest , Formira , Ameisensaure , Formisoton , Myrmicyl , Formic acid (85-95% in aqueous solution) show less
  • Appearance: Colorless fuming liquid ; Colourless fuming liquid with pungent odour ; Colorless liquid with a pungent, penetrating odor. [Note: Often used in an aqueous solution.]

Products:

• CO – Carbon monoxide
  • Other names: Carbon monooxide , Carbonous oxide , Carbon(II) oxide ... show moreCarbonyl , Flue gas , Monoxide , Carboneum oxygenisatum , CO , C#O , [CO] , Carbon oxide , Carbonic oxide show less
  • Appearance: Colorless gas ; Odourless tasteless colourless compressed gas ; Colorless, odorless gas. [Note: Shipped as a nonliquefied or liquefied compressed gas.]
• H₂O – Water, oxidane
  • Other names: Water (H2O) , Hydrogen hydroxide (HH or HOH) , Hydrogen oxide ... show moreDihydrogen monoxide (DHMO) (systematic name) , Hydrogen monoxide , Dihydrogen oxide , Hydric acid , Hydrohydroxic acid , Hydroxic acid , Hydrol , Μ-oxido dihydrogen , Κ1-hydroxyl hydrogen(0) show less
  • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas