Диурон 97% Технология

DIURON 1. Chemical name: N-(3.4-isoprpylphenyl)-N', N'-dimethylurea Molecular formula: C9H10CL12N2O Molecular weight: 233 Structural formula: 2. Specification: 97% Tech, 50%wp.3. Properties: Pure product is white crystal solid, technical product has the melting point of higher than 135, vapour pressure is 4.13 10-4Pa at 50, it is easy to soluble in hot alcohol. Its solubility in acetone at 27 is 5.3%, it is insoluble in water, its solubility in water at 25 is 42ppm. It is steady in air, its hydrolysis in normal temperature is very slight, the speed of hydrolysis will rise on the terms of raising of temperature and alkali. It will be decomposed at 189-190.4. Uses: It can be used for farmland and crops: Cotton, maize, soybean, tea-plantation, rubber plantation etc to get rid of weeds: Crabgrass barnyardgrass, bottle grass, wild amaranth, flatsedge, goosefoot etc. It also can prevent and cure dog pondweed of paddy rice. 5. Toxicity: Acute oral LD50 to rats is 34000mg/kg, it is no effect to raise rats using 250ppm dosage for two years; It is no effect to raise dogs using 500ppm dosage for one year. 6. Packing: In 25kg plastic bag against woven bag.