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What the difference of diffeerent glyphosate formulation?
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dasvig
Posted 5/11/2009 09:20 (#709995 - in reply to #709860)
Subject: RE: What the difference of diffeerent glyphosate formulation?


You need to check what comes AFTER those concentrations to see what's the same. Glyphosate is an acid. To be formulated for use, it is combined with a base. In the US, this base is almost always either IPA (isopropylamine) or K (potassium hydroxide). The salt is heavier than the acid. When you read a concentration, you may see the following

a.e. (acid equivalent - a measure of how much actual glyphosate acid is in the product)
a.i. (active ingredient - this is a measure of the salt)
wt.% (usually the salt)

For IPA salt (typical)
356g/l a.e. = 480g/l a.i. = 41% wt. IPA salt of glyphosate

FOR K Salt (typical)
540g/l a.e. = 660g/l a.i. = 48.8% wt. K salt of glyphosate
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