The new synthetic process of sodium diacetate using acetic acid and caustic soda(or soda ash ) as raw materials, and adopting a new process of one-step liquid-phase method is introduced.

• 介绍了以乙酸、氢氧化钠(或纯碱)为原料,采取一步液相法合成双乙酸钠的新工艺。