目前医院常用的器械消毒液(下称甲醛防锈液)内含甲醛溶液。去年夏天我们发现这种防锈液经2～3天即变色,当时室温在30℃(左右),且逐日颜色转深,防锈能力也明显下降,至第6、7天溶液呈暗红色,并有棕褐色粘稠物析出,浸泡的器械也被锈蚀。为弄清原因我们进行了一些探索,现报告如下。 At present, the hospital commonly used equipment disinfectant (formaldehyde anti-rust solution) contains formaldehyde solution. Last summer, we found that this antirust solution after 2 to 3 days that color, when room temperature at 30 ℃ (about), and day by day color depth, anti-rust ability also decreased significantly to the first 6,7 days dark red solution, And brown sticky precipitation, soaking instruments have also been corroded. To find out the reasons we have made some exploration, the report is as follows.