Diuron 98%

Chemical properties:
The pure product is a white crystalline solid. m.p.158 ～ 159 ℃, vapor pressure 4.13 × 10-4Pa (50 ℃). Easily soluble in hot alcohol; solubility in acetone is 5.3% at 27 ℃; slightly soluble in dioxane, ethyl acetate, ethanol and hot benzene; solubility in water at 25 ℃ is 42mg / L It is stable in the air and decomposes when heated to 180 ～ 190 ℃. It is easy to decompose in case of strong acid and alkali, non-corrosive and non-flammable. Industrial products m.p.> 150 ℃.

use:
It replaces urea herbicides and has systemic conduction and certain contact killing effect. The agent is absorbed by plant roots or leaves to inhibit photosynthesis, causing the leaves to become green, the tip and edges of the leaves to fade, and the plants to die due to lack of nutrients. Diuron at low doses can be selected for weeding by position difference and time difference. It becomes a herbicide at high doses. Mainly used for cotton, soybean, tomato, tobacco, strawberry, grape, orchard, rubber plantation and other crops to control annual grass weeds and certain broad-leaved weeds, such as barnyardgrass, crabgrass, foxtail, wild amaranth, sedge , Quinoa, etc. For example, use 25% diuron wettable powder 30 ～ 45g / 100m2, spray 7.5kg of water on the surface of the soil, and spray more than 90% of the control effect in the rice field before sowing. 15g / 100m2, the control effect is more than 90%; fruit trees and tea gardens are sprayed with 25% wettable powder 30 ～ 37.5g / 100m2 at the peak of weed germination period, spraying the soil surface with 5.3kg of water, or spraying the soil after weeding deal with.