Millon
Chinese alias: millon; Tetrahydro-3,5-dimethyl-1,3,5-thiadiazole-2-thione; Must be quickly extinguished; Dimethylthiazine; 3,5-dimethyl-1,3,5-thiadiazinone-2-thione; Dimethylthiazine
English common name: Dazomet
Chemical name: tetrahydro-3,5-dimethyl-1,3,5-thiadiazole-2-thione
Molecular formula:C5H10N2S2
Molecular weight: 162.3
CAS No.: 533-74-4
Chemical properties: the pure product is white crystal and odorless. The melting point is 99.5 ℃ (decomposition) and the solubility in water is 3000ppm at 20 ℃. It is easy to decompose in aqueous solution, especially at 45 ℃. In case of strong alkali, strong acid decomposes rapidly.
Toxicity: low toxicity
Application: "mianlong" is an environmental protection broad-spectrum comprehensive soil fumigation disinfectant with high efficiency, low toxicity and no residue. Nematicides with fumigation function decompose methyl isothiocyanate, formaldehyde and hydrogen sulfide in soil, and kill root nodule nematode, stem nematode and isodermis nematode. In addition, it has insecticidal, bactericidal and herbicidal effects, so it can also treat soil fungi, underground pests and quinoa weeds, such as potato Rhizoctonia, phosphorus winged insects, percussion insects, larvae of May golden turtle beetle, etc. Using 750 ~ 900g / 100m2 sandy soil and 900 ~ 1050g / 100m2 clay as soil treatment, spreading or furrow application of 98% particulate agent can control nematode disease of vegetables and peanuts. With 75% wettable powder 1125g / 100m2, potato root nematode disease can be controlled. Soil fumigant, methyl thioisothiocyanate nematicide, and also treat fungi, underground pests and weeds, also known as bixumie. The product decomposes in the soil to form methylaminomethyldithiocarbamate, and further forms methyl isothiocyanate. It can effectively control nematodes and soil fungi, such as quenching bacteria, Rhizoctonia, Fusarium, etc., and inhibit the growth of many weeds. Mianlong has a good control effect on cotton yellow Fusarium wilt.
Broad-spectrum pesticides. A nematicide with fumigation effect, which decomposes methyl isothiocyanate, formaldehyde and hydrogen sulfide in the soil, and has a killing effect on root nodule nematodes, stem nematodes, and heterodermal nematodes. In addition, it also has insecticidal, bactericidal and weed-killing effects, so it can simultaneously control soil fungi, underground pests and weeds of the genus Chenopodium, such as Rhizoctonia spp., Phosptera insects, click beetles, and larvae of May beetle. Use 98% particulate agent 750～900g/100m2 sandy soil and 900～1050g/100m2 clay as soil treatment, spreading or furrowing, can prevent and control vegetable and peanut nematode disease. Using 75% wettable powder 1125g/100m2, it can prevent potato root nematode disease. Soil fumigant, methyl thioisothiocyanate nematicide, and it also cures fungi, underground pests and weeds, also known as the quick kill. The product decomposes in the soil to generate methylamino methyl dithiocarbamate, and further generates methyl isothiocyanate. It can effectively control nematodes and soil fungi, such as damping-off, Rhizoctonia, and Fusarium. It can also inhibit the growth of many weeds. Mianlong has a good control effect on cotton verticillium wilt.
IUPAC
3,5-dimethyl-1,3,5-thiadiazinane-2-thione
Zhejiang, China
