Dazomet

Dazomet
Names
	IUPAC name 3,5-Dimethyl-1,3,5-thiadiazinane-2-thione
	Other names Mylon; Basamid, Thiazone; Mylone; Tiazon; DMTT; Dimethylformocarbothialdine; Carbothialdin; Basamide; Nefusan
Identifiers
CAS Number	533-74-4;
3D model (JSmol)	Interactive image;
ChemSpider	10332;
ECHA InfoCard	100.007.798
PubChem CID	10788;
CompTox Dashboard (EPA)	DTXSID7024902 ;
	InChI InChI=1S/C5H10N2S2/c1-6-3-7(2)5(8)9-4-6/h3-4H2,1-2H3 Key: QAYICIQNSGETAS-UHFFFAOYSA-N;
	SMILES CN1CN(C(=S)SC1)C;
Properties
Chemical formula	C5H10N2S2
Molar mass	162.27 g·mol−1
Appearance	White solid
Melting point	104-105 °C
Hazards
Flash point	156 °C (313 °F)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Dazomet is a common soil fumigant that's acts as a 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.^[2] Dazomet is used for soil sterilization as an alternative to methyl bromide. Although less effective it is still used to kill pests because of its comparatively lower toxicity. Dazomet is applied to wet soil, which causes dazomet itself to decompose into a gaseous form, which is what actively controls pests. The decomposition of dazomet releases methyl isothiocyanate (MITC) a gas toxic to pests that would prevent or kill plant growth.

Toxicology and safety

Dazomet is irritating to the eyes^[3] 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.

References

^ "MSDS for Diazomet". Sigma-Aldrich.
^ "RED Fact Sheet: Dazomet" (PDF). US Environmental Protection Agency, Office of Pesticide Programs. July 10, 2008. {{cite journal}}: Cite journal requires |journal= (help)
^ "Dazomet". PAN Pesticides Database.

[1] "MSDS for Diazomet". Sigma-Aldrich.

[2] "RED Fact Sheet: Dazomet" (PDF). US Environmental Protection Agency, Office of Pesticide Programs. July 10, 2008. {{cite journal}}: Cite journal requires |journal= (help)

[3] "Dazomet". PAN Pesticides Database.

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