反応 #80256

反応方程式

NaOH

sulfuric acid

urea

→

Urea Sulfuric acid

溶媒

water

反応条件

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

出典