复方硼砂溶液为口腔科常用药,其中苯酚是配方的主要成份之一。多种制剂手册记载苯酚鉴别法均含三氯化铁颜色反应。即取本品1ml加三氯化铁试液1滴,即显蓝色或紫堇色。然而,在实际操作中出现的现象并不如此。本品加入三氯化铁试液后,却产生黄棕色沉淀。笔者曾取原料液化酚数滴,分别加1.5％硼砂溶液或碳酸氢钠溶液1ml,摇匀后,再加入三氯 Compound borax solution is commonly used in dentistry, of which phenol is one of the main ingredients of the formula. A variety of preparation manual records phenol identification methods include ferric chloride color reaction. Take this product 1ml plus 1 drop of ferric chloride test solution, that is significantly blue or purple pansy color. However, this is not the case in practice. This product is added ferric chloride test solution, it has a yellow-brown precipitate. The author has taken a few drops of liquefied raw materials, respectively, plus 1.5% borax solution or sodium bicarbonate solution 1ml, shake well, then add trichloride