High Effective Weedicide Picloram 95%Tc 240g L SL CAS NO.1918-02-1

Picloram Introduction: 
Picloram is a slightly toxic herbicide and therefore requires the signal word CAUTION on its label. It is of moderate toxicity to the eyes and only mildly toxic on the skin. There is no 
Documented history of human intoxication by picloram so symptoms of acute exposure are difficult to characterize. A possible symptom from massive amounts would be nausea. 
The oral LD50 for picloram is 8, 200 mg/kg in rats, between 1, 061-4, 000 mg/kg for mice, between 1, 922-3, 000 mg/kg for Guinea pigs, and between 2, 000- 3, 500 mg/kg for rabbits. The rabbit dermal LD50 is greater than 4, 000 mg/kg, a level which produced no mortality or toxic signs. Inhalation by a rat of a formulated product failed to achieve an LC50 and no adverse effects were observed for two weeks following the administration of the compound. 

Picloram Function: 
Picloram is used as pharmaceutical raw material. 
1. Picloram is a systemic herbicide used for general woody plant control, sold under the trade names Tordon and Grazon. It also controls a wide range of broad-leaved weeds, but most grasses are resistant. A chlorinated derivative of picolinic acid, picloram is in the pyridine family of herbicides. 
2. Picloram can be sprayed on foliage, injected into plants, applied to cut surfaces, or placed at the base of the plant where it will leach to the roots. Once absorbed by the foliage, stem, or roots, picloram is transported throughout the plant. 
3. Picloram is of moderate toxicity to the eyes and only mildly toxic on the skin. There is no documented history of human intoxication by picloram so symptoms of acute exposure are difficult to characterize. A possible symptom from massive amounts would be nausea. 
4. Picloram is the most persistent of its family of herbicides. It does not adhere to soil and so may leach to groundwater, and has in fact been detected there. It is degraded in soil and water mainly by microbes. Picloram has very little tendency to accumulate in aquatic life.