Nitric Acid → Nitric Acid

HRID 377127Notes

Reaction equation

HRID 377127 reaction equation
[N+:1]([O-:4])([OH:3])=[O:2].C1(N)C=CC([NH2:11])=CC=1>>[N+:1]([O-:4])([O-:3])=[O:2].[OH:2][NH3+:1].[N+:1]([O-:4])([OH:3])=[O:2].[N+:1]([O-:4])([O-:3])=[O:2].[NH4+:11]

Participants

5

Reactant 2

HCID 944Nitric Acid3×HCID 7814P-Phenylenediamine

Product 3

HCID 944Nitric AcidHCID 22985Ammonium nitrateHCID 2604513465-08-2

Procedure

The general procedure of Example 1 is repeated except that a piece of graphite felt is attached to the graphite cathode to enhance the cathode surface area. A solution containing 0.5 M nitric acid and 50 mM 1,4-phenylenediamine is charged to the catholyte compartment. Concentrated nitric acid is added to the catholyte compartment to maintain the nitric acid concentration between 0.5 M and 1 M under application of an electrical current. While maintaining the temperature between 5° C. and 10° C., a current of 20 amps (5 ASI) and a cell voltage of about 5.5 volts is applied. The catholyte is stirred under application of the current. A solution of 1.67 M hydroxylammonium nitrate and 0.50 M nitric acid with no detectable ammonium nitrate is obtained from the catholyte compartment. An overall current efficiency of 85% for formation of hydroxylammonium nitrate is achieved.

Workup

  1. additionis charged to the catholyte compartment
  2. temperatureWhile maintaining the temperature between 5° C. and 10° C.

Sources & evidence

ORD record
ord-208046fef48542eb9c0e0ee068a40d99
Source dataset
uspto-grants-2000_02
Patent number
US06024855

Reaction notes

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