Molecular Formula | C19H16Cl2N2O4S |
Molar Mass | 439.31 |
Density | 1.2815 (rough estimate) |
Melting Point | 118~122℃ |
Boling Point | 610.7±55.0 °C(Predicted) |
pKa | -1.53±0.10(Predicted) |
Storage Condition | 0-6°C |
Refractive Index | 1.6000 (estimate) |
Physical and Chemical Properties | The pure chemical property is white crystal. M. p.117.5 ~ 118.5 ℃,220 ℃,30min decomposition, vapor pressure <1.3 × 10-9Pa (20 ℃). Solubility at 25 ℃: 1,4-dioxane 256g/L, ethyl acetate 118g/L, ethanol 14g/L, hexane 0.6g/L, water 0.056mg/L. It is stable in chloromethane and benzene, and unstable in methanol and 1, 4-dioxane; it decomposes rapidly in aqueous solution. The half-life in soil is 10 ~ 20d. |
Use | Use of pyrazole herbicides to kill weeds by inhibiting chlorophyll biosynthesis. Control annual and perennial weeds in rice fields. It is selective for rice and barnyard. It can inhibit their growth through the absorption of their roots in the seedling stage of wild barnyard, ducktongue, festival vegetables and beef felt, firefly, and narrow-leaf Alisma, and play a role in preventing weeds. effect. This product can be mixed with a variety of herbicides, and is willing to increase the effect, can play a role and effect that can not be used alone. For example, it is mixed with killing grass, inhibiting grass phosphorus and butachlor. Generally, it is used in rice fields before sowing or transplanting, with 3kg of effective ingredients per hectare. When applying, it is necessary to evenly spread 10% granules by hand or machine under the condition of water retention. |
Hazard Symbols | Xn - Harmful |
Risk Codes | 20 - Harmful by inhalation |