直接使用原料白降汞粉制得的白降汞软膏往往均匀度差。局部用药刺激性大,同时原料不易研磨致细。为克服此缺点,多年来我们采用氯化汞溶液与氨溶液化学反应法,新鲜制备白降汞,再与基质调 Direct use of raw white drop mercury powder white drop mercury ointment often poor uniformity. Topical irritation, while not easy to grind fine raw materials. To overcome this shortcoming, over the years we use mercuric chloride solution and ammonia solution chemical reaction, freshly prepared white mercury, and then with the matrix tone