| abstract |
The invention discloses a method for preparing tetrazolium acetic acid by a hydrazine hydrate method. The tetrazolium acetic acid is prepared by using triethyl orthoformate, glycine, hydrazine hydrate, sodium nitrite and the like as raw materials. The invention abandons the traditional azide method using sodium azide as the raw material to prepare the tetrazolium acetic acid process route, improves the safety of the production process, has low production cost, does not generate waste water and waste gas in the whole process, meets the requirements of green chemical production, and is combined with The salt sodium sulfate produced can be sold directly, which further reduces the production cost. In addition, the invention has simple synthetic route, high product purity, strong operability and repeatability, and is convenient for industrialized production. |