Citric Acid → Citric Acid

HRID 1781217Notes

Reaction equation

HRID 1781217 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].[Cu:14].C(=O)([O-])[O-].[S:19]([O-:23])([O-:22])(=[O:21])=[O:20].[Cl-].[N+]([O-])([O-])=O.P([O-])([O-])([O-])=O>>[S:19]([O-:23])([O-:22])(=[O:21])=[O:20].[Cu+2:14].[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]

Participants

9

Reactant 7

HCID 311Citric AcidHCID 312ChlorideHCID 943NitrateHCID 1061PhosphateHCID 1117Sulfate IonHCID 19660Carbonate IonHCID 23978Copper2×

Product 2

HCID 311Citric AcidHCID 24462Copper Sulfate

Procedure

This example presents a synopsis of biocidal solution design calculations for a biocidal solution comprised of citric acid (the ligand, or complexing agent) and copper. One gallon of sewage effluent containing bacteria could be treated with one drop of stock solution prepared as follows. For this example, a biocide solution of copper sulfate and citric acid is prepared. Other chemical species present in sewage effluent are carbonate, sulfate, chloride, nitrate and especially phosphate, all of which have the potential for decreasing copper effectiveness via precipitation of copper (carbonate, and phosphate), or increasing copper complexation thereby increasing the total available copper.

Workup

  1. additionOne gallon of sewage effluent containing bacteria
  2. additioncould be treated with one drop of stock solution
  3. customprepared
  4. customvia precipitation of copper (carbonate, and phosphate)
  5. temperatureincreasing copper complexation
  6. temperaturethereby increasing the total available copper

Sources & evidence

ORD record
ord-d0e5da991214455380f3f6ed9e4608b4
Source dataset
uspto-grants-1997_05
Patent number
US05632904

Reaction notes

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