Thermodynamic Study on the Protonation Reactions of Glyphosate in Aqueous Solution: Potentiometry, Calorimetry and NMR spectroscopy

• Published in: The journal of physical chemistry. B Vol. 120; no. 9; pp. 2132 - 2137
• Main Authors: Liu, Bijun, Dong, Lan, Yu, Qianhong, Li, Xingliang, Wu, Fengchang, Tan, Zhaoyi, Luo, Shunzhong
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 10.03.2016
• Subjects: amino nitrogen; aqueous solutions; Calorimetry; Calorimetry - methods; Electrical measurements; Glycine - analogs & derivatives; Glycine - chemistry; Glyphosate; Herbicides - chemistry; Magnetic Resonance Spectroscopy - methods; NMR spectroscopy; nuclear magnetic resonance spectroscopy; Oxygen; Phosphonates; physical chemistry; physical properties; Potentiometry - methods; Protonation; Protons; Solutions - chemistry; Thermodynamics; Water - chemistry

Glyphosate [N-(phosphonomethyl)­glycine] has been described as the ideal herbicide because of its unique properties. There is some conflicting information concerning the structures and conformations involved in the protonation process of glyphosate. Protonation may influence the chemical and physica...