Oxidation and Reduction by Solid Oxidants and Reducing Agents using Ball-Milling - Ball Milling Towards Green Synthesis: Applications, Projects, Challenges - page 59

Figure 3.1 Medicaments preparation by mortar treatment in old China (author's
photograph in public park Tainan city, Taiwan).

Figure 3.2 Solid oxidants and reductants used in mechanochemistry (the graph

refers to a recent literature search based on 30 scientific articles).

reports the percentage use of the main solid reagents (or gas): oxidants in the
green-blue portion and reducing agents in the brown area (right).
Tables 3.1 and 3.2 should be helpful to the reader to easily associate one
specific reagent (solid oxidant or reducing agent) with the mechanochemical
procedures described in the literature. The eciency and scalability of this
oxidation/reduction technique, the absence of solvents and the low energy
consumption strongly encourage chemists to consider it in most cases as a
method of choice. Clearly, technical parameters such as beaker dimension,
size, material and number of milling balls as well as vibration/revolutions