反应产生天蓝色沉淀，用氧化剂氧化后变成深蓝色，试问，天蓝色产物是什么？
WIki到这一段话
“Prussian blue is produced by oxidation offerrous ferrocyanide salts. These white solids have the formula M2Fe[Fe(CN)6]where M+ = Na+ or K+. The iron in thismaterial is all ferrous, hence the absence of deep color associated with themixed valency. Oxidation of this white solid with hydrogen peroxide or sodiumchlorate produces ferricyanide and affords Prussian Blue.”
“Prussian blue is produced by oxidation offerrous ferrocyanide salts. These white solids have the formula M2Fe[Fe(CN)6]where M+ = Na+ or K+. The iron in thismaterial is all ferrous, hence the absence of deep color associated with themixed valency. Oxidation of this white solid with hydrogen peroxide or sodiumchlorate produces ferricyanide and affords Prussian Blue.”
