Metam sodium CAS:137-42-8

  • Product Name:Metam sodium
  • CAS:137-42-8
  • Molecular formula:C2H4NNaS2
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Metam sodium CAS:137-42-8

Metam sodium CAS:137-42-8 Basic information

Product Name: Metam sodium
Synonyms: basamid-fluid;bay5590;carbamicacid,n-methyldithio,sodiumsalt;Carbamicacid,N-methyldithio-,sodiumsalt;carbathion;carbathione;carbation;geort
CAS: 137-42-8
MF: C2H4NNaS2
MW: 129.18
EINECS: 205-293-0
Product Categories: Alpha sort;H-MAlphabetic;M;META - METH;Pesticides&Metabolites
Mol File: 137-42-8.mol

Metam sodium CAS:137-42-8 Chemical Properties

Boiling point: 110°C
form: Liquid
storage temp.: APPROX -18°C
Water Solubility: 72.2 g/100 mL at 20 ºC
vapor pressure: 6 x 10-4 Pa (25 °C; free acid)
CAS DataBase Reference: 137-42-8(CAS DataBase Reference)
EPA Substance Registry System: Sodium methyldithiocarbamate (137-42-8)

Product Name

Metam sodium

CAS

137-42-8

Items

Specification

Appearance

Red brown liquid

Assay   %

42%





Conclusion

Accords with GB


Metam sodium Usage And Synthesis
DescriptionMetam sodium is a crystalline material with an unpleasant odor of sulfur compounds. It reacts in water to generate methyl isothiocyanate, which is the active material. It is applied as a freshly diluted solution in water.
Chemical PropertiesWhite, crystalline solid. Readily soluble in water; moderately soluble in alcohol; stable in concentrated aqueous solution but decomposes in dilute aqueous solution; unstable in moist soil.
Chemical PropertiesA yellow to nearly clear yellow-green solution. Also described as a colorless to white crystalline solid. Unpleasant sulfur-amine odor, similar to that of carbon disulfide
UsesFungicide, nematocide, weed killer, insecticide, soil fumigant.
UsesMetam-sodium is a generator of methyl isothiocyanate. It is a soil sterilant applied prior to planting and controls soil fungi, nematodes, weed seeds and soil dwelling insects.
General DescriptionA yellow to light yellow-green aqueous solution with an odor of amine and sulfur that varies in intensity. Boiling point 230°F. Metham sodium has a specific gravity of 1.162. Metham sodium will decompose upon dilution to carbon disulfide, monomethylamine, methylisothiocyanate, and hydrogen sulfide. The decomposition products are flammable and toxic. The acute symptoms of exposure to metam sodium are excessive salivation, sweating, fatigue, weakness, nausea, headache, dizziness, eye and respiratory tract irritation, and skin irritation in the form of rashes. The spillage of a rail car tanker of metal sodium into the Sacramento River caused a major fish kill (over a million trout) along several miles of that river.


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