Metam sodium

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Metam sodium[1]
Metham sodium.png
CAS number 137-42-8 YesY
PubChem 5366415
ChemSpider 2273119 YesY
Jmol-3D images Image 1
Molecular formula C2H4NNaS2
Molar mass 129.18 g/mol
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Metam sodium is an organosulfur compound (formally a dithiocarbamate), which is used as a soil fumigant, pesticide, herbicide, and fungicide. It is one of the most widely used pesticides in the United States, with approximately 60 million pounds used in 2001.[2] Metam sodium is the sodium salt of methyl dithiocarbamate.

Metam sodium can be prepared from methylamine, carbon disulfide, and sodium hydroxide; or from methyl isothiocyanate and sodium thiolate.[1]

Upon exposure to the environment, metam sodium decomposes to form methyl isothiocyanate.[3]

See also[edit]


  1. ^ a b Merck Index, 11th Edition, 5860.
  2. ^ 2000-2001 Pesticide Market Estimates, U.S. Environmental Protection Agency
  3. ^ Review of Metam Sodium, Dazomet, Methylisothiocyanate (MITC), Australian Pesticides and Veterinary Medicines Authority, June 1997

External links[edit]