| 摘要 |
<p>Preparation of 1,2,4-triazole by reacting formamide and hydrazine in a molar ratio of 2 : 1 to 2,2 : 1, hydrazine or its hydrate being metered into excess formamide, preheated to 160 - 200.degree., while maintaining the temperature, and then completing the reaction at 160 - 240.degree.C. 0,Z.709 1.6.1981</p> |
