Name | Diuron |
Synonyms | DCMU Karmex Diuron Dichlorfenidim 3-(3,4-Dichlorophenyl)-1,1-dimethylurea |
CAS | 330-54-1 |
EINECS | 206-354-4 |
InChI | InChI=1/C9H10Cl2N2O/c1-13(2)9(14)12-6-3-4-7(10)8(11)5-6/h3-5H,1-2H3,(H,12,14) |
Molecular Formula | C9H10C12N2O |
Molar Mass | 233.09 |
Density | 1.369g/cm3 |
Melting Point | 158-159℃ |
Boling Point | 385.2°C at 760 mmHg |
Flash Point | 186.7°C |
Water Solubility | Slightly soluble. 0.0042 g/100 mL |
Vapor Presure | 3.88E-06mmHg at 25°C |
Storage Condition | 2-8℃ |
Refractive Index | 1.605 |
Physical and Chemical Properties | Melting point 158-159°C water-soluble snyly soluble. 0.0042g/100 mL |
Use | For the control of non-cultivated land general weeds, but also for the selective herbicide cotton field |
Hazard Symbols | Xn - Harmful N - Dangerous for the environment |
Risk Codes | R22 - Harmful if swallowed R40 - Limited evidence of a carcinogenic effect R48/22 - Harmful danger of serious damage to health by prolonged exposure if swallowed. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S2 - Keep out of the reach of children. S13 - Keep away from food, drink and animal foodstuffs. S22 - Do not breathe dust. S23 - Do not breathe vapour. S37 - Wear suitable gloves. S46 - If swallowed, seek medical advice immediately and show this container or label. S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
UN IDs | UN 2767 |
pure white crystalline solid, melting point 15 8~159 °c (industrial> 150 °c), vapor pressure (50 °c) 4.13 x 10-4 Pa. Soluble in hot alcohol, 27 ℃ in acetone solubility of 5.3%. Slightly soluble in dioxane, ethyl acetate, ethanol and hot benzene, 25 ℃ in water solubility of 42 mg/L. Stable in air, heated to 180~190 °c decomposition. In case of strong acid, strong alkali is easy to decompose, non-corrosive, non-flammable.
after mixing with appropriate amount of catalyst anhydrous FeCl3, 3,4-chloronitrobenzene was prepared by chlorine gas chlorination reaction at a certain temperature. The nitro compound was reduced to give 3,4-= chloroaniline. The resulting 3,4-= chloroaniline is added dropwise to a solution of toluene saturated with phosgene and reacted to give 3,4-= phenyl chloroisocyanate. Finally, 3,4-= phenyl chloroisocyanate is reacted with dimethylamine to give trichloron.
substituted urea herbicides, with the role of absorption conduction and a certain Contact killing effect. Plant root or leaf absorption after inhibition of photosynthesis, resulting in loss of green leaves, leaf tip and edge discoloration. At low doses, the herbicide can be selected by the difference and the time difference. At high doses, it becomes a killing herbicide. Mainly used for cotton, soybean, tomato, tobacco, strawberry, grape, Orchard, rubber plantation and other crops to control the annual grass weeds. Such as drought, Horse Tang, green grass, wild amaranth, cyperus, etc.
The oral LD50 of rats was 1690mg/kg.