Citric Acid → Carbon Dioxide

HRID 444620Notes

Reaction equation

HRID 444620 reaction equation
[C:1]([OH:13])(=[O:12])[CH2:2][C:3]([CH2:8][C:9]([OH:11])=[O:10])([C:5]([OH:7])=[O:6])[OH:4].C(=O)(O)[O-].[Na+:18]>O>[C:5](=[O:7])=[O:6].[C:1]([OH:13])(=[O:12])[CH2:2][C:3]([CH2:8][C:9]([O-:11])=[O:10])([C:5]([O-:7])=[O:6])[OH:4].[Na+:18].[Na+:18].[C:1]([O-:13])(=[O:12])[CH2:2][C:3]([CH2:8][C:9]([O-:11])=[O:10])([C:5]([O-:7])=[O:6])[OH:4].[Na+:18].[Na+:18].[Na+:18]

Participants

6

Reactant 2

HCID 311Citric AcidHCID 516892Sodium Bicarbonate

Product 3

HCID 280Carbon DioxideHCID 6224Trisodium citrateHCID 13767563HCID 13767563, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

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.

Workup

  1. customThe reaction between the solid acid and effervescent agent
  2. customan acid base reaction

Sources & evidence

ORD record
ord-4cd7a7f182b14af79b510309ee302497
Source dataset
uspto-grants-2013_07
Patent number
US08475759B2

Reaction notes

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