Reaktion #80256

ord-93142238973f4f45b4e085e5586d9314

Reaktionsgleichung

[Na+].[OH-]
NaOH
O=S(=O)(O)O
sulfuric acid
NC(N)=O
urea
→
NC(N)=O.O=S(=O)(O)O
Urea Sulfuric acid

Edukte

[Na+].[OH-]
NaOH
O=S(=O)(O)O
sulfuric acid
NC(N)=O
urea
—
final solution

Reagenzien

Keine

Lösungsmittel

O
water

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

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

Vorschrift

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 0.5 N NaOH (phenolphthalein indicator) was 5.3 N, which is equal to the theoretical value.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US05616151uspto-grants-1997_04