研究了醛类在乙酸和水混合溶剂中以Ｃｏ~（２＋）和Ｂｒ~－为催化剂的自氧化振荡反应．得知某些取代苯甲醛和脂肪醛在适当条件下能发生振荡，并研究了苯甲醛、正丁醛和乙醛的周期受动力学制约的影响，提出了相关的机理模型．依此模型以Ｇｅａｒ方法计算其振荡周期基本与实验结果相符． The self-oxidation reaction of aldehydes with Co 2+ and Br ~ - as catalysts in the mixed solvents of acetic acid and water was studied. It is found that some substituted benzaldehydes and aliphatic aldehydes can oscillate under appropriate conditions and the influence of the cyclic kinetic constraints of benzaldehyde, n-butyraldehyde and acetaldehyde is studied. The relevant mechanism model is proposed. According to this model, the oscillation period calculated by Gear method is basically consistent with the experimental results.