Herbicide compatibility improvement

A - Human Necessities – 01 – N

Patent

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Details

A01N 57/20 (2006.01) A01N 25/04 (2006.01) A01N 37/40 (2006.01) A01N 39/04 (2006.01) A01N 43/40 (2006.01) A01P 13/00 (2006.01)

Patent

CA 2608206

A herbicidal composition comprises an aqueous solution of one to a plurality of salts of glyphosate at a total glyphosate a.e. concentration not less than about 360 g/1, wherein (a) said glyphosate is in anionic form accompanied by low molecular weight non- amphiphilic cations in a total molar amount of about 110% to about 120% of the molar amount of said glyphosate; and (b) a major amount to substantially all of the low molecular weight non-amphiphilic cations are potassium cations. The composition exhibits improved tank-mix compatibility with a phenoxy-type herbicide salt formulation by comparison with an otherwise similar composition having a lower molar amount of said low molecular weight non-amphiphilic cations.

L'invention concerne une composition herbicide qui comprend une solution aqueuse d'un sel faisant partie d'une pluralité de sels de glyphosate à une concentration a.e. totale de glyphosate d'au moins environ 360 g/l. Dans ladite composition : (a) ledit glyphosate se présente sous forme d'anions accompagnés par des cations non amphiphiles de faible poids moléculaire à une quantité molaire totale comprise entre environ 110 % et environ 120 % de la quantité molaire dudit glyphosate ; et (b) des cations potassium représentent une quantité majeure par rapport à la quasi-totalité des cations non amphiphiles de faible poids moléculaire. Ladite composition présente une compatibilité de mélange en cuve améliorée avec une formulation de sel herbicide de type phénoxy par comparaison avec une composition identique présentant une quantité molaire inférieure desdits cations non amphiphiles de faible poids moléculaire.

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