反应 #80256

ord-93142238973f4f45b4e085e5586d9314

反应方程式

[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

反应物

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

试剂

无

溶剂

O
water

反应条件

详细条件
See reaction.notes.procedure_details.

后处理

  1. 1
    其他at 66° C
  2. 2
    温度The temperature was maintained below 50° C. in a cooling bath during the addition

实验过程

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.

来源

DOI: 10.6084/m9.figshare.5104873.v1专利: US05616151uspto-grants-1997_04