Hydrazine → Fuming sulfuric acid

HRID 1601715Notes

Reaction equation

HRID 1601715 reaction equation
[S:1]([OH:5])([OH:4])(=[O:3])=[O:2].NN.NN>S(=O)(=O)(O)O>[OH:4][S:1]([OH:5])(=[O:3])=[O:2].[O:2]=[S:1](=[O:4])=[O:3]

Participants

4

Reactant 2

HCID 9321HydrazineHCID 24842Hydrazine Sulfate

Product 1

HCID 24681Fuming sulfuric acid

Reagents, catalysts & solvents 1

HCID 1118Sulfuric AcidSolvent

Conditions

Temperature
105 °C

Procedure

After cooling, a solution of 90 g of hydrazine sulfate in 900 g of 96% sulfuric acid was added over two hours, while being heated progressively to about 100-110° C. After the introduction of the hydrazine, the temperature was raised to 170° C. and maintained there for 11 hours.

Workup

  1. temperatureAfter cooling
  2. temperaturemaintained there for 11 hours

Sources & evidence

ORD record
ord-e6bb480c7469496ab1748cfb2f785a8f
Source dataset
uspto-grants-1999_11
Patent number
US05977379

Reaction notes

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