In order to avoid the photolysis of ferric ferrocyanide precipitate, the operation can only be done in dark. 操作宜在阳光直射不到的阳暗处进行以避免亚铁氰化铁沉淀的光解反应发生。
The method is chemically based on the reduction of ferricyanide by ferric reductase to ferrocyanide from which, in presense of cupric ions, an insoluble and electron-dense brownish precipitate is formed. 其化学原理是:当铁还原酶将铁氰化钾还原为亚铁氰化钾时,亚铁氰化钾与铜离子迅速结合生成浅棕色不溶于水的电子致密沉淀。
The high-enriched cyanogen in pyrethrin wastewater was precipitated in the form of ferrous ferrocyanide ( Fe 2) by ferrous sulfate, then the ferric ferrocyanide ( Fe 4 3), iron blue precipitation with less solubility was formed by means of aeration. 用硫酸亚铁将菊酯生产废水中的高浓度CN-沉淀为Fe2[Fe(CN)6],经曝气后转化为溶解度更小的Fe4[Fe(CN)6]3铁蓝沉淀。