本发明公开了一种制备2,4,5-三氨基-6-羟基嘧啶硫酸盐的方法,以经过亚硝化步骤得到的2,4-二氨基-5-亚硝基-6-羟基嘧啶为原料,在含有表面活性剂的水溶剂中分散后在中性条件下进行 The invention discloses a method for preparing 2,4,5-triamino-6-hydroxypyrimidine sulfate. The 2,4-diamino-5-nitroso-6-hydroxypyrimidine obtained through the nitrosation step is The raw materials are dispersed in an aqueous solvent containing a surfactant and then subjected to neutral conditions