Go to:
Logótipo
Comuta visibilidade da coluna esquerda
Você está em: Start > Publications > View > Greenness of chemical reactions, limitations of mass metrics
Publication

Publications

Greenness of chemical reactions, limitations of mass metrics

Title
Greenness of chemical reactions, limitations of mass metrics
Type
Article in International Scientific Journal
Year
2013
Authors
M. Gabriela T. C. Ribeiro
(Author)
FCUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications Without AUTHENTICUS Without ORCID
Adélio A. S. C. Machado
(Author)
FCUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications View Authenticus page Without ORCID
Journal
Vol. 6 No. 1
Pages: 1-18
ISSN: 1751-8253
Publisher: Taylor & Francis
Indexing
Publicação em ISI Web of Science ISI Web of Science
Publicação em Scopus Scopus
Scientific classification
FOS: Engineering and technology > Chemical engineering
Other information
Resumo (PT): The influence of reaction conditions (yield, excess of stoichiometric reagent, molecular weights of reagents, mass of auxiliary materials and solvents) on the values of several green chemistry mass metrics (E-factor, mass intensity, atom utilization, relative mass efficiency and element efficiency), for reactions with 1:1 and 1:3 stoichiometries, has been analyzed, as well as relationships between the metrics. The theoretical behavior of these, when visualized by three dimensional graphic representations, e.g. surfaces of metric = f (yield, excess), together with the experimental values, facilitates the management of its improvement – changes in conditions in successive experiments should follow the directions shown by the graph. The study shows that there are practical limitations to the greenness increase due to the complex nature of the chemistry but confirms that it is worthwhile to pay more attention to the effort of obtaining quantitative details of the laboratory syntheses to acquire information to assess greenness.
Abstract (EN): The influence of reaction conditions (yield, excess of stoichiometric reagent, molecular weights of reagents, mass of auxiliary materials and solvents) on the values of several green chemistry mass metrics (E-factor, mass intensity, atom utilization, relative mass efficiency and element efficiency), for reactions with 1:1 and 1:3 stoichiometries, has been analyzed, as well as relationships between the metrics. The theoretical behavior of these, when visualized by three dimensional graphic representations, e.g. surfaces of metric = f (yield, excess), together with the experimental values, facilitates the management of its improvement – changes in conditions in successive experiments should follow the directions shown by the graph. The study shows that there are practical limitations to the greenness increase due to the complex nature of the chemistry but confirms that it is worthwhile to pay more attention to the effort of obtaining quantitative details of the laboratory syntheses to acquire information to assess greenness.
Language: English
Type (Professor's evaluation): Scientific
Contact: gribeiro@fc.up.pt
Documents
We could not find any documents associated to the publication.
Related Publications

Of the same authors

Uma análise SWOT do contexto CTS2 das actividades laboratoriais do ensino secundário (2011)
Poster in a National Conference
Dominique A. Costa; M. Gabriela T. C. Ribeiro; Adélio A. S. C. Machado
Síntese a micro e macroescala, qual é mais verde? (2011)
Poster in a National Conference
M. J. Borges; M. Gabriela T. C. Ribeiro; Adélio A. S. C. Machado
Limitações das métricas de massa da Química Verde (2011)
Poster in a National Conference
M. Gabriela T. C. Ribeiro; Adélio A. S. C. Machado
Estrela Verde uma métrica de verdura para avaliação de experências laboratoriais (2008)
Poster in a National Conference
M. Gabriela T. C. Ribeiro; Dominique A. Costa; Bruna Faria; A. Neves; Adélio Machado
Novas métricas laboratoriais de verdura de sínteses: energia e tempo (2012)
Poster in an International Conference
M. José Borges; M. Gabriela T. C. Ribeiro; Adélio A. S. C. Machado

See all (30)

Of the same journal

"Green Star": a holistic Green Chemistry metric for evaluation of teaching laboratory experiments (2010)
Article in International Scientific Journal
M. Gabriela T. C. Ribeiro; Dominique A. Costa; Adélio A. S. C. Machado
Recommend this page Top
Copyright 1996-2025 © Faculdade de Direito da Universidade do Porto  I Terms and Conditions  I Acessibility  I Index A-Z
Page created on: 2025-07-15 at 09:26:48 | Privacy Policy | Personal Data Protection Policy | Whistleblowing