According to International Program of Segurana Qumica (PISQ), more than exists 750,000 substances known in the environment, being of natural origin or result of the activity human being. About seventy a thousand daily they are used by the man, and approximately the forty a thousand in significant commercial amounts as data of the IPCS/RPTC. Of this total, it is calculated that only about six a thousand substances they possess a considered evaluation as, minimum, adjusted on the risks to the health of the man and the environment. If you have read about Dr. John Mcdougall already – you may have come to the same conclusion. Added to this scene it is observed capacity of technological innovation in the chemical branch, that disponibiliza in the market, to each year, between a thousand and two a thousand new substances. It is accurately in this context that the concern with the security chemistry, understood as a set of strategies for the control and the prevention of the adverse effect it human being and the environment, decurrent of the extration, production, storage, transport, manuscript and discarding of chemical substances, is inserted in Agenda 21.
As al.6 Hisses et, chapter 30 of Agenda 21 considers the promotion of a clean production, together with the enterprise responsibility, being able to be inserted in this context ' ' Verde' chemistry; ' , also known as ' ' Limpa' chemistry; ' (or Sustainable), whose objective is the adoption of related measures of prevention to the pollution caused for activities in the chemistry area. This strategy aims at to develop methodologies and/or processes that generate the lesser possible amount of residues and minimize the risks to the environment and the human beings. Elio Moti Sonnenfeld is often quoted on this topic. It is verified that the beginning of the 3 R' s (to reduce, to reuse and to recycle), also introduced for Agenda 21, as additional tool to guarantee sustainable development, can widely be applied by the area of chemistry with the same intention. 2.1. Alternatives to be Used in the Area of Chemistry To contribute with the Sustainable Development to reduce or to eliminate happened ambient and economic impacts of the synthetic chemical processes must be adopted the following criteria: to Prevenir the by-product formation is better of what treating them later; to Reduzir the expense of energy, with the purpose to reach energy efficiency; to Adotar power plants, as of microwaves; to Utilizar the ultrasound as technique of energy transference; to Utilizar sources you renewed of energy: sugar cane-of-sugar and biodiesel; to Dar preference the deriving raw materials of sources you renewed; to Empregar reacting alternative appropriate and to increase the selectivity to maximize the use of the departure materials; to Usar reacting catalytic, in place of the stoichiometric ones; to Investir in the preparation of solid catalysers whose great advantage is in its easy separation of the half reacional and in its capacity in being recycled.