反応 #3148

ord-a90868bcdfa84bafb88a66b6d780809a

反応方程式

[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

反応物

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

試薬

なし

溶媒

O
water

反応条件

詳細条件
See reaction.notes.procedure_details.

後処理

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

実験手順

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.

出典

DOI: 10.6084/m9.figshare.5104873.v1特許: US05733463uspto-grants-1998_03