CoachGreen chemistry is the design of chemical products and processes that reduce or eliminate the use and the production of hazardous substances, from the choice of the starting materials to the fate of the product after use.
Examples
Example 48.16 (Greener solvents)
Many reactions and extractions use organic solvents that are toxic, flammable or volatile. Water is the safest solvent of all, when the reactants dissolve in it. Carbon dioxide becomes another: above and it is a supercritical fluid, neither liquid nor gas, which dissolves many organic molecules. It extracts caffeine from coffee beans, for example; when the pressure is released, it simply turns back into a gas and leaves no residue in the product.