ASSESSMENT OF THE "MICRO-GREENNESS" OF SYNTHESES USING THE GREEN STAR | Zendy

Rita C. C. Duarte | Zendy; M. Gabriela T. C. Ribeiro | Zendy; Adélio A. S. C. Machado | Zendy

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ASSESSMENT OF THE "MICRO-GREENNESS" OF SYNTHESES USING THE GREEN STAR

Author(s) -

Rita C. C. Duarte,

M. Gabriela T. C. Ribeiro,

Adélio A. S. C. Machado

Publication year - 2014

Publication title -

química nova

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.214

H-Index - 73

eISSN - 1678-7064

pISSN - 0100-4042

DOI - 10.5935/0100-4042.20140168

Subject(s) - star (game theory) , astronomy , environmental science , physics , astrophysics

This article reports a study to increase the overall greenness of chemical syntheses for first-year university laboratories. The separate evaluation of the micro-greenness of the three stages of synthesis (reaction, isolation and purification) using the Green Star (GS) was implemented and their respective contribution to overall greenness was investigated for two examples: syntheses of cobalt (III) tris(acetylacetonate) and potassium nitrilosulfonate. Results showed that the post-reaction (work-up) steps are the most problematic for overall greenness. Greenness optimization can be achieved by combining the greenest procedures for each step obtained from different protocols available in the literature

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