Atom economy - the ratio of the relative molecular mass or formula mass of the desired product to the total relative molecular mass or formula mass of the reactants

Green chemistry - green chemistry is ‘the utilization of a set of principles that reduce or eliminate the use or generation of hazardous substances in the design, manufacture and use of chemical pro

Sustainable development - sustainable development can be defined as ‘development meeting the needs of the present without compromising the ability of future generations to meet their needs&rsquo