Ammonia → Ammonium hexachloroplatinate(IV)

HRID 544183Notes

Reaction equation

HRID 544183 reaction equation
[H+].[H+].[Cl:3][Pt-2:4]([Cl:9])([Cl:8])([Cl:7])([Cl:6])[Cl:5].[NH3:10]>O>[NH4+:10].[NH4+:10].[Cl:3][Pt-2:4]([Cl:9])([Cl:8])([Cl:7])([Cl:6])[Cl:5]

Participants

4

Reactant 2

HCID 222AmmoniaHCID 61859Chloroplatinic acid2×

Product 1

HCID 16211460Ammonium hexachloroplatinate(IV)

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Prior to the preparation of the impregnating solution, chloroplatinic acid, H2PtCl6, was converted to the form of an ammoniacal platinum complex solution as follows: A 500 cc three-necked flask equipped with an agitater and a water cooler was charged with 100 cc of a chloroplatinic acid solution containing 10 g of Pt, and 55 cc of 9.7 N ammonia solution was added slowly to the flask to form an orange-colored precipitate of ammonium chloroplatinate. The flask was gently heated to 70° C. over the course of 30 minutes with continuous stirring, and then kept at this temperature for an additional 60 minutes to dissolve the precipitate completely. The cooled solution showed a light yellow color and had a pH of about 9.5. Finally, the concentration of platinum in the solution was adjusted to 40 g per liter of the solution.

Workup

  1. customA 500 cc three-necked flask equipped with an agitater
  2. additionwas added slowly to the flask

Sources & evidence

ORD record
ord-c0011307b6c64ebaa22d354cc1815dd0
Source dataset
uspto-grants-1984_05
Patent number
US04448895

Reaction notes

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