Determination of Rate Constant for Enolization Reaction of Malonic Acid by Using Quartz Crystal Microbalance

作者：Yoshimoto Minoru^*; Matsunaga Taishi; Aizawa Hidenobu; Kurosawa Shigeru

来源：Bunseki Kagaku, 2012, 61(10): 863-867.

DOI：10.2116/bunsekikagaku.61.863

• QCM
• Belousov-Zhabotinsky reaction
• viscosity
• density
• enolization
• malonic acid

We investigated the process of a bromination reaction of malonic acid (MA) in the Belousov-Zhabotinsky reaction by using a quartz crystal microbalance (QCM). That process involves an enolization reaction of MA as a rate-limiting reaction. We found that the variation of the Br-2 concentration induces a shift of the viscosity and density of the solution in that process. This new finding led us to a determination of the reaction rate constant for the enolization reaction of MA due to the QCM measurement. This value measured by QCM is in good agreement with those measured by a spectrophotometer as described in previous reports. As a result, we succeeded to develop a new measurement method of the chemical reaction.

• 出版日期2012-10