Metham sodium

Metham sodium[1]
IUPAC name Sodium methylaminomethanedithioate
Other names Carbathion Carbathione Carbothion Metamsodium Metam-sodium
Identifiers
CAS number	137-42-8 Y
PubChem	5366415
ChemSpider	2273119 Y
Jmol-3D images	Image 1
SMILES [Na+].[S-]C(=S)NC
InChI InChI=1S/C2H5NS2.Na/c1-3-2(4)5;/h1H3,(H2,3,4,5);/q;+1/p-1 Y Key: AFCCDDWKHLHPDF-UHFFFAOYSA-M Y InChI=1/C2H5NS2.Na/c1-3-2(4)5;/h1H3,(H2,3,4,5);/q;+1/p-1 Key: AFCCDDWKHLHPDF-REWHXWOFAS
Properties
Molecular formula	C2H4NNaS2
Molar mass	129.18 g/mol
Y sodium (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Metham sodium is a soil fumigant used as a 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] Metham sodium is the sodium salt of methyldithiocarbamate.

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

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

References

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