تفاعل #80256

ord-93142238973f4f45b4e085e5586d9314

معادلة التفاعل

[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

المتفاعلات

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

الكواشف

لا شيء

المذيبات

O
water

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    أخرىat 66° C
  2. 2
    درجة الحرارةThe temperature was maintained below 50° C. in a cooling bath during the addition

الإجراء التجريبي

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.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US05616151uspto-grants-1997_04