Phosphoric Acid → Zinc Phosphate

HRID 1706350Notes

Reaction equation

HRID 1706350 reaction equation
[O-2].[Zn+2:2].[P:3](=[O:7])([OH:6])([OH:5])[OH:4]>[Zn].O>[P:3]([O-:7])([O-:6])([O-:5])=[O:4].[Zn+2:2].[P:3]([O-:7])([O-:6])([O-:5])=[O:4].[Zn+2:2].[Zn+2:2]

Participants

5

Reactant 2

HCID 1004Phosphoric Acid2×HCID 3007857Zinc Oxide

Product 1

HCID 24519Zinc PhosphateYield 101.5%

Reagents, catalysts & solvents 2

HCID 23994ZincCatalystHCID 962WaterSolvent2×

Conditions

Temperature
70 °C

Procedure

In a ball mill 438 g of zinc oxide and 4 g of metallic zinc (powder) are ground by the wet grinding method in the presence of 500 g of water, whereafter an additional 1,000 g of water are added thereto. The resulting slurry is heated to a temperature of 70° C. and under continuous stirring 350 g of phosphoric acid are added thereto (as calculated for 100% H3PO4). After 40 minutes the slurry is filtered, the residue is washed and dried to give 700 g of zinc phosphate (the yield is 98%).

Workup

  1. additionare added
  2. filtrationAfter 40 minutes the slurry is filtered
  3. washthe residue is washed
  4. customdried

Sources & evidence

ORD record
ord-a55005b7f2414dae9c8720f8120340c4
Source dataset
uspto-grants-1980_06
Patent number
US04207301

Reaction notes

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