Metam sodium

{{chembox

| verifiedrevid = 409002120

| Reference = Merck Index, 11th Edition, 5860.

| ImageFile = metham sodium.png

| ImageSize = 160px

| ImageFile1 = Metham sodium 3D ball.png

| ImageSize1 = 170

| ImageAlt1 = Ball-and-stick model of the component ions of metham sodium

| PIN = Sodium methylcarbamodithioate

| OtherNames = Metham sodium
Carbathion
Carbathione
Carbothion
Metamsodium
Metam-sodium

|Section1={{Chembox Identifiers

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| ChemSpiderID = 2273119

| StdInChI_Ref = {{stdinchicite|correct|chemspider}}

| StdInChI = 1S/C2H5NS2.Na/c1-3-2(4)5;/h1H3,(H2,3,4,5);/q;+1/p-1

| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

| StdInChIKey = AFCCDDWKHLHPDF-UHFFFAOYSA-M

| CASNo_Ref = {{cascite|correct|CAS}}

| CASNo=137-42-8

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 3CD7UKN224

| PubChem = 5366415

| SMILES = [Na+].[S-]C(=S)NC

}}

|Section2={{Chembox Properties

| Formula=C₂H₄NNaS₂

| MolarMass=129.18 g/mol

| Appearance=

| Density=

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|Section3={{Chembox Hazards

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Metam sodium is an organosulfur compound with the formula {{chem2|CH3NHCS2Na}}. The compound is a sodium salt of a dithiocarbamate. The compound exists as a colorless dihydrate, but most commonly it is encountered as an aqueous solution.{{cite book |doi=10.1002/14356007.a17_125.pub2|chapter=Nematicides |title=Ullmann's Encyclopedia of Industrial Chemistry |year=2008 |last1=Hartwig |first1=Jürgen |last2=Sommer |first2=Herbert |last3=Müller |first3=Franz |isbn=978-3527306732 }} It 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.[http://www.epa.gov/oppbead1/pestsales/01pestsales/usage2001_2.htm 2000-2001 Pesticide Market Estimates] {{webarchive|url=https://web.archive.org/web/20090207095013/http://www.epa.gov/oppbead1/pestsales/01pestsales/usage2001_2.htm |date=2009-02-07 }}, U.S. Environmental Protection Agency

Metam-sodium belongs to two HRAC groups, so it is designated Group A/C (Aus), Group A/C1 (global) and Group 1/5 (numeric).{{cite web |last1=Hertfordshire |first1=University of |title=Metam-sodium (Ref: N 869) |url=https://sitem.herts.ac.uk/aeru/ppdb/en/Reports/447.htm |website=sitem.herts.ac.uk}}