Aminomethylphosphonic acid explained

Aminomethylphosphonic acid should not be confused with AMPA.

Aminomethylphosphonic acid (AMPA) is a weak organic acid with a phosphonic acid group.

Application

AMPA apparently can be used as biocide and pesticide.[1] AMPA is also used in research to assess the exposure of glyphosate.[2]

Environmental fate

AMPA is one of the primary degradation products of the herbicide glyphosate[3] and the related chemical glyphosat-trimesium.[1] In addition, it is a transformation product of aminopolyphosphonates used as antiscalants in many applications like in European laundry additives.[4]

AMPA has the potential to be broken down further by manganese oxide in laboratory conditions, however in soil manganese oxide is usually only present in trace amounts.[5] Microbial degradation of AMPA is the more likely degradation pathway, where it degrades into phosphoric acid[6] [7] and ultimately to carbon dioxide and inorganic phosphate.[8]

Toxicity

AMPA has toxicity which is comparable to that of glyphosate and it is therefore considered to be of similar toxicological concern (harmful in greater than 0.5 parts per million) as glyphosate itself.[9]

External links

Notes and References

  1. Web site: (Aminomethyl)phosphonic acid . PubChem . NLM . 10 July 2022.
  2. Fagan . John . Bohlen . Larry . Patton . Sharyle . Klein . Kendra . Organic diet intervention significantly reduces urinary glyphosate levels in U.S. children and adults . Environmental Research . October 2020 . 189 . 109898 . 10.1016/j.envres.2020.109898. 32797996 . free . 2020ER....189j9898F .
  3. http://www.cdpr.ca.gov/docs/emon/pubs/fatememo/glyphos.pdf Environmental Fate of Glyphosate
  4. Schwientek . M. . Rügner . H. . Haderlein . S. B. . Schulz . W. . Wimmer . B. . Engelbart . L. . Bieger . S. . Huhn . C. . 2024-07-23 . Glyphosate contamination in European rivers not from herbicide application? . Water Research . 122140 . 10.1016/j.watres.2024.122140 . 0043-1354.
  5. K. A. Barrett and M. B. McBride. Oxidative Degradation of Glyphosate and Aminomethylphosphonate by Manganese Oxide. Environ. Sci. Technol., 2005, 39 (23), pp 9223–9228
  6. Pipke R, Amrhein N. (1988) Isolation and characterization of a mutant of Arthrobacter sp. strain GLP-1 which utilizes the herbicide glyphosate as its sole source of phosphorus and nitrogen. Applied and Environmental Microbiology 54(11): 2868-2870.
  7. Forlani G, Mangiagalli A, Nielsen E, Suardi CM. (1999) Degradation of the phosphonate herbicide glyphosate in soil: Evidence for a possible involvement of unculturable microorganisms. Soil Biology and Biochemistry 31: 991-997
  8. Backgrounder: Glyphosate does not degrade to phosphorous acid in the environment. Monsanto. 2005
  9. http://www.inchem.org/documents/jmpr/jmpmono/v097pr04.htm Pesticide Residues in Food - 1997

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Aminomethylphosphonic acid".

Except where otherwise indicated, Everything.Explained.Today is © Copyright 2009-2024, A B Cryer, All Rights Reserved. Cookie policy.