The reaction of sodium metabisulfite with formic acid can produce a new compound and also release gas. The chemical formula of sodium metabisulfite is Na2S2O5, while the chemical formula of formic acid is HCOOH. It is a colorless liquid commonly used in the manufacturing of dyes, pharmaceuticals, etc.

When sodium metabisulfite and formic acid are mixed, they undergo chemical reactions. The specific reaction equation is: Na2S2O5 + 2HCOOH → 2SO2 + 2CO2 + Na2CO3 + 2H2O

From the reaction equation, it can be seen that the reaction between sodium metabisulfite and formic acid produces four substances: sulfur dioxide, carbon dioxide, sodium carbonate, and water. Among them, sulfur dioxide and carbon dioxide are gases that are released, while sodium carbonate and water are solids and liquids that remain in the reaction vessel.

The experimental process of this reaction is relatively simple, just mix sodium metabisulfite and formic acid in a certain proportion, and then observe the reaction products. Some methods can be used to detect reaction products, such as using test strips to detect the production of carbon dioxide, or using acid-base indicators to detect the production of sodium carbonate.

Reaction of Sodium Metabisulfite with Formic Acid