Atrazine Powder CAS 1912-24-9

Atrazine powder is colorless crystal, soluble in water, methanol and chloroform. It is stable in neutral, slightly acidic and slightly alkaline media, but alkali and inorganic acid can hydrolyze it into hydroxyl derivatives with no herbicidal activity at high temperature, which is non-corrosive. This chemical is cheap, and because it is a pre-germination herbicide, it can prevent weeds from competing with crops at the beginning of the growing season. According to relevant analogies, reasonable use of Atrazine finished product can increase crop yield by 6%. Atrazine is also used in conservation tillage systems to control weeds and reduce soil erosion.

What are the characteristics of Atrazine?

Atrazine powder is a broad-spectrum, systemic selective herbicide before and after seedling, which has strong selectivity, mainly absorbed by roots, but rarely absorbed by stems and leaves, and quickly transmitted to plant meristems and leaves, inhibiting and interfering with the photosynthesis of weeds (such as Xanthium, Crotalaria, ragweed and wild cucumber, etc.), causing weeds to die. In addition, Atrazine is easily soluble in water and leached into the deeper soil by rain, which has inhibitory effect on some deep-rooted weeds and can be decomposed by microorganisms in the soil. The residual effect period is affected by factors such as dosage and soil texture, which can last for about half a year. In resistant crops such as corn, it will be decomposed by corn ketolase to produce non-toxic substances, so it is safe for crops.

What are the applications and hazards of Atrazine?

Atrazine powder has a wide weed control spectrum, which can control many annual gramineous and broad-leaved weeds. It is suitable for preventing and killing weeds such as crabgrass, barnyard grass, green bristlegrass, sedge, milkweed, Polygonum hydropiper, Chenopodium album, Cruciferae and Leguminosae in dryland crops such as corn, sorghum, sugarcane, fruit trees, nurseries, woodlands, etc., and has good selectivity for corn (due to detoxification mechanism in corn) and is also effective for some perennial weeds. Atrazine can be applied before planting, before germination and after germination, and the dosage of effective components is 0.45~4.5 kg/hm.
Although high quality Atrazine is a low toxic herbicide, its half-life in soil is as long as 4-57 weeks because of its slow mineralization by microorganisms. Therefore, if Atrazine is used excessively and persistently, the residue in soil or sediment can enter surface water or groundwater through surface runoff, leaching, wet sedimentation, etc. Drinking polluted water for a long time will affect people's immune system, lymphatic system, reproductive system and endocrine system, which is potentially carcinogenic, and it will directly cause certain harm to water environment, soil and animals. For example, It has sex reversal effect on frogs, which further affects the growth and reproduction of frogs. In addition, long-term exposure to Atrazine spray may cause abdominal pain, diarrhea and vomiting, so precautions should be taken when spraying pesticides. Based on the above reasons, this herbicide has become an important index to evaluate the organic pollutants in water, and it has been listed as a priority pollutant in the international environment. China, the European Union, the United States and other countries have strengthened the supervision of Atrazine raw powder.

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