Ammonium nonanoate

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Ammonium nonanoate
Ammonium nonanoate.svg
IUPAC name
Ammonium nonanoate
Other names
Ammonium pelargonate; Pelargonic acid ammonium salt
3D model (JSmol)
Molar mass 175.27 g·mol−1
Appearance Clear, colorless to pale yellow liquid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Ammonium nonanoate is a nonsystemic, broad-spectrum contact herbicide that has no soil activity.[1] It can be used for the suppression and control of weeds, including grasses, vines, underbrush, and annual/perennial plants, including moss, saplings, and tree suckers. Ammonium nonanoate is very water-soluble. At room temperature at its maximum concentration in water (40%), it is a clear, colorless to pale yellow liquid with a slight fatty acid odor. It is stable in storage. In pure form, it exists as stable white crystals at room temperature.[2]

Ammonium nonanoate is made from ammonia and nonanoic acid, a carboxylic acid widely distributed in nature, mainly as derivatives (esters) in such foods as apples, grapes, cheese, milk, rice, beans, oranges, and potatoes and in many other nonfood sources.

Ammonium nonanoate does not persist in soil and is expected to degrade rapidly, primarily by microbial action, with a half-life of less than one day.


  1. ^ US patent 6323156 
  2. ^ Biopesticide Registration Action Document, Ammonium Nonanoate, US EPA, 2006