Oxalic Acid → Zirconium phosphate

HRID 1983218

Reaction equation

HRID 1983218 reaction equation
C(O)(=O)C(O)=O.[N+]([O-])(O)=O.[N+]([O-])(O)=O.O=[Zr:16].[N+]([O-])([O-])=O.[Na+].[P:22](=[O:26])([OH:25])([OH:24])[OH:23].[OH-].[Na+]>>[P:22]([O-:26])([O-:25])([O-:24])=[O:23].[Zr+4:16].[P:22]([O-:26])([O-:25])([O-:24])=[O:23].[P:22]([O-:26])([O-:25])([O-:24])=[O:23].[P:22]([O-:26])([O-:25])([O-:24])=[O:23].[Zr+4:16].[Zr+4:16]

Participants

6

Reactant 5

HCID 971Oxalic AcidHCID 1004Phosphoric AcidHCID 14798Sodium HydroxideHCID 24268Sodium NitrateHCID 83761Zirconyl nitrate

Product 1

HCID 160986Zirconium phosphate

Procedure

Oxalic acid is added to an aqueous solution of zirconium oxynitrate and sodium nitrate with stirring and then phosphoric acid is added. The pH of the reaction mixture is adjusted to 3.5 with an aqueous sodium hydroxide solution and refluxed with heating for 78 hours. The precipitate is filtered, washed with water, dried and ground to obtain zirconium phosphate that is then immersed in an aqueous solution containing silver ion at a suitable concentration to obtain the compound represented by formula 1.

Workup

  1. temperaturerefluxed
  2. temperaturewith heating for 78 hours
  3. filtrationThe precipitate is filtered
  4. washwashed with water
  5. customdried

Sources & evidence

ORD record
ord-96560a4fc3c74af4825b7c45f74b5654
Source dataset
uspto-grants-2009_06
Patent number
US07541418B2

Linked notes

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