Reaction #531802

ord-4cd7a7f182b14af79b510309ee302497

Reaction equation

O=C([O-])O.[Na+]
sodium bicarbonate
O=C(O)CC(O)(CC(=O)O)C(=O)O
citric acid
→
O=C([O-])CC(O)(CC(=O)O)C(=O)[O-].[Na+].[Na+]
sodium hydrogen citrate
O=C=O
carbon dioxide
O=C([O-])CC(O)(CC(=O)[O-])C(=O)[O-].[Na+].[Na+].[Na+]
sodium citrate

Reactants

O=C([O-])O.[Na+]
sodium bicarbonate
O=C(O)CC(O)(CC(=O)O)C(=O)O
citric acid

Reagents

None

Solvents

O
water

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    OtherThe reaction between the solid acid and effervescent agent
  2. 2
    Otheran acid base reaction

Procedure

The reaction between the solid acid and effervescent agent is an acid base reaction. For example, the reaction between citric acid and sodium bicarbonate produces water, carbon dioxide, sodium hydrogen citrate, and sodium citrate. Normally this acid base reaction would take place in an aqueous medium, however the aqueous reaction is rather quick and the carbon dioxide is released within minutes. The inventors have found that the addition of a deliquescent agent to an effervescent agent and a solid acid promotes the acid base reaction and slowly maintains the reaction by drawing water from the atmosphere to supplement the water generated in the reaction.

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08475759B2uspto-grants-2013_07