31. M. Gabriela T. C. Ribeiro, Santiago F. Yunes, Adélio A. S. C. Machado, Assessing the Greenness of Chemical Reactions in the Laboratory Using Updated Holistic Graphic Metrics Based on the Globally Harmonized System of Classification and Labeling of Chemicals, Journal of Chemical Education, 91, 1901-1908, 2014.
2014-06-28

Autores:
M. Gabriela T. C. Ribeiro
Santiago F. Yunes*
Adélio A. S. C. Machado**


Instituições:
REQUIMTE, Departamento de Química e Bioquímica da Faculdade de Ciências da Universidade do Porto
*Departamento de Química, Universidade Federal de Santa Catarina, Brasil
**Departamento de Química e Bioquímica da Faculdade de Ciências da Universidade do Porto


Resumo:
In previous articles, two graphic holistic metrics for assessing the greenness of synthesis, “green star” and “green circle”, were presented. These metrics assess the greenness by the degree of accomplishment of each of the 12 principles of green chemistry that apply to the case under evaluation. The criteria for assessment were based in the hazards symbols used in the system established by the European Union, directive 67/548/EEC, obtained from the safety data sheets (SDS) of chemicals. Meanwhile, the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) replaced that system and introduced a new classification of hazards and new symbols. The objective of this work is to present new criteria for the construction of the metrics based on the GHS system. A brief presentation of this system is included. The present upgrade includes also an improvement of the graphic presentation of the green star to facilitate the visual assessment of the degree of accomplishment of each principle.

http://pubs.acs.org/doi/abs/10.1021/ed400421b