Use of Nickel Catalysis

In various industrial processes, a large amount of catalyst is used - a substance that changes the reaction rate without being consumed by the reaction itself. According to some estimates [cite-wiki 10], "Commercially produced chemical products use catalysts at certain stages of their production process." Wiki 11]. The close relevance of catalysts and catalytic processes in various industries and the proximity of these industries to consumers raises questions about the application of catalysts and their impact on the product.

For acid catalysts and basic catalysts, the chemical reaction is catalyzed by acid or base. The acid is a proton donor and the base is a proton acceptor, called Bronsted-Lowry acid and base, respectively. Typical reactions catalyzed by proton transfer are esterification reaction and aldol reaction. In these reactions, the conjugate acid of the carbonyl group is a better electrophile than the neutral carbonyl. The catalysis of acids or bases can occur in two different ways: specific catalysis and general catalysis. Many enzymes pass acid catalysis

In certain acid catalysts, the protonated solvent is a catalyst. The reaction rate is proportional to the concentration of the protonated solvent molecule SH +. The acid catalyst itself (AH) contributes to speed acceleration only by changing the chemical equilibrium between solvent S and AH so as to favor SH + species. This catalysis is common for strong acids in polar solvents such as water. When the pH is maintained at a constant level but the buffer concentration changes, the change in rate represents a general acid catalysis. Constant velocity is evidence of a specific acid catalyst. This catalysis is important when the reaction is carried out in a nonpolar medium, as the acid is not usually ionized.

Both acid catalyzed reactions and base catalyzed reactions are used for their own unique purpose. A macroscopic example of an acid catalyst is the reaction and conversion of hydrocarbon atoms with gasoline found in petroleum, and the production of siloxane. An example of a large base catalysed reaction is the preparation and conversion of several compounds and molecules used in the production of foam sponges. The main reason for this study was the discovery that yeast catalase was able to decompose hydrogen peroxide after adding different amounts of acid and base. In this experiment my hypothesis is that the stronger the acidity of the mixture made in different cups or the higher the alkalinity, the more bubbles, the higher they are.