Sodium Hydroxide → Ammonium fumarate

HRID 965314Notes

Reaction equation

HRID 965314 reaction equation
[C:1]([OH:8])(=[O:7])/[CH:2]=[CH:3]/[C:4]([OH:6])=[O:5].[OH-].[NH4+:10].[OH-].[Na+]>O>[C:1]([O-:8])(=[O:7])/[CH:2]=[CH:3]/[C:4]([O-:6])=[O:5].[NH4+:10].[NH4+:10]

Participants

5

Reactant 3

HCID 14798Sodium HydroxideHCID 14923Ammonium HydroxideHCID 444972Fumaric Acid

Product 1

HCID 9793847Ammonium fumarate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

A slurry of 11.6 g (0.1 mole) fumaric acid was dissolved in 30 ml water was mixed with 26 g of 30% aqueous solution of ammonium hydroxide (0.22 mol NH3). Carefully warming the slurry to boiling gave a clear solution. This solution was boiled to dryness over a period of 15 minutes to give a white crystalline solid. The solid was tumbled under nitrogen at 100 Torr, at 235°-245° C. for 1.5 hours to give a water insoluble, brown, glasslike solid weighing 9.0 g. This solid was dissolved in 100 g of an aqueous solution containing 2.0 g of sodium hydroxide to form a pale yellow solution, pH 8.5, containing 25% solids.

Workup

  1. temperatureCarefully warming the slurry
  2. customto boiling gave a clear solution
  3. customto give a white crystalline solid
  4. waitThe solid was tumbled under nitrogen at 100 Torr, at 235°-245° C. for 1.5 hours
  5. customto form a pale yellow solution, pH 8.5

Sources & evidence

ORD record
ord-b3c0e92aaed046ce9625b9909c675647
Source dataset
uspto-grants-1998_06
Patent number
US05773565

Reaction notes

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