反应 #992675

反应方程式

Oxalic acid

Aminoguanidine bicarbonate

guanidine carbonate

→

Guanidinium Oxalate

溶剂

water

反应条件

后处理

1. 1
   其他to avoid bubbling over the sides of the beaker due to the evolution of carbon dioxide during the reaction
2. 2
   workup.STIRRINGThe reaction was stirred at room temperature overnight (approximately 24 hours)
3. 3
   其他The water was removed from the reaction mixture in vacuo
4. 4
   其他The product was recovered as a crystalline white solid

实验过程

Oxalic acid (200.0 g, 2.22 mol) was weighed into a 2-liter beaker with a magnetic stir bar and dissolved in 1500 ml of distilled water. Aminoguanidine bicarbonate (362.8 g, 2.67 mol) and guanidine carbonate (160.1 g, 0.89 mol) were added in portions with stirring as to avoid bubbling over the sides of the beaker due to the evolution of carbon dioxide during the reaction. The reaction was stirred at room temperature overnight (approximately 24 hours). The water was removed from the reaction mixture in vacuo with heating to approximately 90° C. for 4 hours. The product was recovered as a crystalline white solid.

来源