Dazomet
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Dazomet is a a common soil fumigant thats acts as an herbicide, fungicide, and nematicide.
Applications
Dazomet is a chemical used to kill pests that inhibit plant growth through gaseous degradation. Dazomet is used as a soil sterilant on a variety of sites such as golf courses, nurseries, turf sites, and potting soils.[1] Dazomet is used for soil sterilization as an alternative to methyl bromide. Although less effective than methyl bromides, it is still used to kill pests because of its lower toxicity compared to methyl bromides. Application of Dazomet to soil works through decomposition with water. When Dazomet interacts with wet soil it decomposes into MITC (methyl isothiocyanate) a gas toxic to pests that would prevent or kill plant growth.
Toxicology and Safety
Dazomet is irritating to the eyes[2] and its degradation product, MITC, is a dermal sensitizer. Dazomet is very toxic to aquatic organisms, and also acutely toxic to mammals. Exposure to Dazomet can occur through several means; interaction with unincorporated granules, inhalation of it decomposition product, MITC, and/or water runoff.
Physical Properties
Dazomet is white solid with fungicidal and herbicidal properties.
Dazomet melts from 104-105 °C
Dazomet's has a molar mass of 162.3 g/mol with chemical formula C5H10N2S2.
The CAS number for Dazomet is 533-74-4.
References
- http://www.epa.gov/oppsrrd1/REDs/factsheets/dazomet-fs.pdf
- http://www.pesticideinfo.org/Detail_Chemical.jsp?Rec_Id=PC34566
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