固相配位化学反应研究 ⅩⅩⅩⅣ.室温下六氰合铁(Ⅱ)及(Ⅲ)酸钾的固相酸碱反应

Solid State Reaction of Coordination Compounds ⅩⅩⅩⅣ. Some Solid Acid and Base Reactions of Potassium Hexacyanoferrate (III) and (II) at Room Temperature

本文研究了室温时K_3Fe(CN)_6,K_4Fe(CN)_6在酸碱条件下发生的固相配位化学反应.结果表明:K_3Fe(CN)_6与NaBH_4固相混合物室温下不反应,但加入固体氢氧化钠后,K_3Fe(CN)_6与NaBH_4的固相氧化还原反应在室温下很容易进行.K_4Fe(CN)_6与K_2S_2O_8的固相氧化还原反应在室温下能顺利进行,但当固体KOH存在时,反应明显受到抑制.K_3Fe(CN)_6与K_2C_2O_4·H_2O室温下无反应,但与H_2C_2O_4·2H_2O在室温时即发生固相取代反应.

Solid state reactions of potassium hexacyanoferrate (Ⅲ) and potassium hexacyanoferrate(Ⅱ) at room temperature were studied by IR and Mossbauer spectroscopy. The results show that the reaction of potassium hexacyanoferrate(Ⅲ) and sodium borohydride takes place easily if solid sodium or potassium hydroxide is added. The solid state redox reaction of potassium hexacyanoferrate (Ⅱ) and potassium peroxydisulfate, which takes place easily at room temperature, is restrained by solid potassium hydroxide. No solid state redox reaction occurs between oxalic acid dihydrate and potassium hexacyanoferrate(Ⅲ), but a solid state substitution reaction takes place at room temperature.