VNThe article below introduces What is the Profenofos? What Are the Big Effects of the Profenofos?
What is Profenofos ?
The Profenofos , is commonly used as an organophosphate insecticide. It is recognized as a liquid compound, ranging in color from pale yellow to amber, with a garlic-like odor. It was first acknowledged in 1982, but in 2015, the European Union issued a ban on its use.
Chemical Formula and Mechanism of Action of the Profenofos
Its chemical formula is O – (4 – bromo – 2 – chlorophenyl) – O – ethyl – S – propyl-thiophosphate. Similar to other compounds in the organophosphate group, it works by inhibiting the enzyme acetylcholinesterase. Notably, among its isomers, the S (-) isomer of Profenofos exhibits stronger inhibitory capabilities.
See more: Profenofos – Wikipedia
Properties and Applications
Corrosive Property: It has corrosive properties, making it suitable for use as an insecticide.
Acetylcholinesterase Inhibition Function: It functions by inhibiting the enzyme acetylcholinesterase, aiding in controlling mosquitoes and chemical agents in agriculture.
Application in Insect Control: It is widely used on various crops to control harmful insects, particularly stubborn scale insects and mealybugs.
Formation of Toxic Phosphine Gas: It can produce phosphine gas, a highly toxic and flammable substance when interacting with strong reducing agents like hydrides. The oxidation process can release harmful phosphorous oxides.
What Are the Effects of the Profenofos?
It has numerous beneficial effects, including:
Insecticide: It effectively kills contact insects and stomach-poisoning insects, especially in cotton and vegetable fields.
Fruit Borer Prevention: It is used to prevent various types of fruit borer pests and flies on a range of crops, particularly fruit borers on cotton plants.
Effect on Chewing Insects: It has the capability to repel and kill chewing insects, particularly effective against chewing pests.
Properties of Profenofos 50 Insecticide
The Profenofos 50% EC product effectively controls fruit borer pests. Its efficacy on cotton and vegetables after 7 days of treatment reaches over 90%. Treating with Profenofos 50% EC is as effective as using control agents, albeit with a milder effect at lower doses.
In summary, it is an important active ingredient in controlling harmful insects and protecting crops, facilitating efficient and sustainable agricultural productivity.
Characteristics and Handling Measures in Case of Poisoning by the Profenofos
Despite being effective in pest control, Profenofos poses poisoning risks to humans and the environment. Exposure to this active ingredient can occur through ingestion or skin contact, and even when the powder or vapor reaches the eyes or respiratory system.
Symptoms of Profenofos Poisoning
Poisoning symptoms may occur within 12 hours:
Mild: Symptoms include headache, dizziness, nausea, vomiting, sweating, weakness, chest discomfort, blurred vision, loss of appetite, and a decrease in cholinesterase levels in the blood (a 70-50% decrease).
Moderate: In addition to mild symptoms, there may also be mild breathing difficulties, muscle tremors, confusion, chest percussion, unsteady movement, sweating, drooling, and abdominal pain, diarrhea.
Severe: Severe cases can lead to unconsciousness, seizures, severe breathing difficulties, frothy saliva, uncontrollable urination, seizures, and respiratory paralysis.
Treatment Measures in Case of Poisoning
If someone experiences Profenofos poisoning, it is essential to immediately take the patient to the nearest hospital or medical facility for symptom treatment. Treatment measures include:
Subcutaneous injection of atropine or intravenous injection of 1 ~ 5mg atropine (depending on the degree of poisoning).
Intravenous injection of 0.4-1.2g pralidoxime (depending on the degree of poisoning).
Limit the use of morphine, theophylline, phenothiazines, and reserpine.
Induce vomiting immediately, gastric lavage, and use of laxatives (only induce vomiting if the patient is conscious).
Preventive Measures Against Profenofos Poisoning
Respiratory Protection: When used in production or agriculture, a self-priming filter mask (full face mask) should be worn. In emergencies, positive pressure self-contained breathing apparatus (SCBA) should be used for rescue or evacuation.
Eye Protection: After protecting the respiratory system, ensure eye protection.
Body Protection: Wear protective clothing and synthetic rubber gloves.
Limit Exposure:
- Avoid smoking or eating in the workplace.
- After work, thoroughly wash hands and body.
- Do not wear work clothes outside the workplace.
- Dirty clothes should be washed separately and cleaned for future use.
- Ensure meticulous personal hygiene.
