Phosphoric Acid → 12-Wolframophosphoric acid

HRID 2420183

Reaction equation

HRID 2420183 reaction equation
[O-:1][W:2]([O-])(=O)=O.[Na+].[Na+].[P:8](=O)(O)(O)[OH:9]>O>[OH2:1].[OH2:9].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[OH2:1].[PH3:8].[W:2].[W:2].[W:2].[W:2].[W:2].[W:2].[W:2].[W:2].[W:2].[W:2].[W:2].[W:2]

Participants

4

Reactant 2

HCID 1004Phosphoric AcidHCID 26052Sodium tungstate

Product 1

HCID 45231312-Wolframophosphoric acid

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Phosphotungstic acid reagent was prepared by refluxing a solution of 4 g sodium tungstate in 30 ml of H2O with 3.2 ml of 85% by weight orthophosphoric acid for 2 hours. The solution was then cooled to room temperature and diluted to 100 cc. Then 3.2 g of Li2SO4.H2O was added and mixed well. This liquid reagent material was incorporated into pods prepared as described in Example 1.

Workup

  1. additiondiluted to 100 cc
  2. additionmixed well
  3. customprepared

Sources & evidence

ORD record
ord-b6f46e18dd0a43b998a301e8b3cc6fc1
Source dataset
uspto-grants-1978_08
Patent number
US04110079

Linked notes

Loading…