Oxalic Acid → Zirconium phosphate

HRID 1653942

Reaction equation

HRID 1653942 reaction equation
C(O)(=O)C(O)=O.[P:7](=[O:11])([OH:10])([OH:9])[OH:8].[N+]([O-])(O)=O.[N+]([O-])(O)=O.O=[Zr:21].[N+]([O-])([O-])=O.[Na+].[OH-].[Na+]>>[P:7]([O-:11])([O-:10])([O-:9])=[O:8].[Zr+4:21].[P:7]([O-:11])([O-:10])([O-:9])=[O:8].[P:7]([O-:11])([O-:10])([O-:9])=[O:8].[P:7]([O-:11])([O-:10])([O-:9])=[O:8].[Zr+4:21].[Zr+4:21]

Participants

6

Reactant 5

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

Product 1

HCID 160986Zirconium phosphate

Procedure

Oxalic acid and phosphoric acid are added, in this order, to an aqueous solution of zirconium oxynitrate and sodium nitrate, with stirring. The mixture is adjusted to pH 3.5 with an aqueous sodium hydroxide solution and then refluxed under heating for 78 hours. The resulting precipitate is collected by filtration, water-washed, dried and disintegrated to obtain a zirconium phosphate [NaZr2 (PO4)3 ] having a network structure.

Workup

  1. temperaturerefluxed
  2. temperatureunder heating for 78 hours
  3. filtrationThe resulting precipitate is collected by filtration, water-
  4. washwashed
  5. customdried

Sources & evidence

ORD record
ord-47f271c65481498ea70e0c0933df7f18
Source dataset
uspto-grants-1995_04
Patent number
US05405644

Linked notes

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