Sulfuric Acid → Urea sulfate

HRID 3052

Reaction equation

HRID 3052 reaction equation
[NH2:1][C:2]([NH2:4])=[O:3].[S:5](=[O:9])(=[O:8])([OH:7])[OH:6].[OH-].[Na+]>O>[S:5](=[O:7])(=[O:6])([OH:9])[OH:8].[NH2:1][C:2]([NH2:4])=[O:3]

Participants

5

Reactant 3

HCID 1118Sulfuric AcidHCID 1176UreaHCID 14798Sodium Hydroxide

Product 1

HCID 159909Urea sulfate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Prilled urea (17.5 grams, 0.29 moles) was dissolved in 53.5 grams water. To this solution was slowly added sulfuric acid (29.0 grams, 0.26 moles, 89.3%) at 66° C. The temperature was maintained below 50° C. in a cooling bath during the addition. The final solution on titration with 0.5N NaOH (phenolphthalein indicator) was 5.3N, which is equal to the theoretical value.

Workup

  1. customat 66° C
  2. temperatureThe temperature was maintained below 50° C. in a cooling bath during the addition

Sources & evidence

ORD record
ord-a90868bcdfa84bafb88a66b6d780809a
Source dataset
uspto-grants-1998_03
Patent number
US05733463

Linked notes

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