| Full text | |
| Author(s): |
Carvalho Jr, Paulo S.
;
Guimaraes, Getton G. F.
[1]
;
Diniz, Luan F.
[2]
;
Ellena, Javier
[2]
;
Ribeiro, Caue
[3, 4]
Total Authors: 5
|
| Affiliation: | [1] EPAGRI Empresa Pesquisa Agr & Extensao Rural Sant, Rd Antonio Heil 6800, BR-88318112 Itajai, SC - Brazil
[2] Univ Sao Paulo, Inst Fis Sao Carlos, CP 369, BR-13560970 Sao Carlos, SP - Brazil
[3] Forschungszentrum Julich, Inst Energy & Climate Res IEK 3, Electrochem Proc Engn, D-52425 Julich - Germany
[4] Embrapa Instrumentacao, Rua 15 Novembro 1452, BR-13560206 Sao Carlos, SP - Brazil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | GREEN CHEMISTRY; v. 21, n. 23, p. 6419-6429, DEC 7 2019. |
| Web of Science Citations: | 0 |
| Abstract | |
Although herbicides are essential for ensuring high crop yields, the development of sustainable formulations remains a challenge in modern agriculture. Herbicide use is typically affected by the poor water solubility of the compounds they contain, and so they are often applied at very high doses that exceed those needed for weed control (WC). Highly soluble herbicides allow application without the excessive formation of undissolved solids, but only a few routes have been developed for this purpose. Herein, a crystal engineering approach is presented for improving the solubility of the herbicide ametryn (AMT). Organic salts of AMT with fumaric acid (m.p. similar to 135 degrees C) and maleic acid (m.p. similar to 125 degrees C) were successfully prepared, providing substantial improvement in the solubility (10-fold and 20-fold, respectively), compared to pure AMT, along with thermal stability. Herbicidal activity tests confirmed the effectiveness of these systems, which showed good WC performance at 1 kg ha(-1), considerably below the 2.5 kg ha(-1) for AMT. The results demonstrate that these systems offer an accessible technology for reducing the use of AMT in agricultural practices and a strategy for the design of new WC chemistries. (AU) | |
| FAPESP's process: | 16/09198-6 - Designing and characterization of solid modifications of agrochemical ingredients herbicides with lower environmental impact |
| Grantee: | Paulo de Sousa Carvalho Júnior |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 16/10636-8 - From the cell factory to the Biodiesel-Bioethanol integrated biorefinery: a systems approach applied to complex problems in micro and macroscales |
| Grantee: | Roberto de Campos Giordano |
| Support Opportunities: | Program for Research on Bioenergy (BIOEN) - Thematic Grants |
| FAPESP's process: | 15/25694-0 - Obtaining, characterization and evaluation of novel crystalline solid forms of drugs used treatment of tuberculosis |
| Grantee: | Luan Farinelli Diniz |
| Support Opportunities: | Scholarships in Brazil - Master |