
Acephate, also known as Orthene, is a widely used organophosphate foliar insecticide that has been a cornerstone in agricultural pest management since the 1990s. This article provides an in-depth analysis of its chemical properties, technical specifications, application scenarios, and the company background of Hebei Dongfeng Chemical Technology Co., Ltd., a leading provider of agricultural solutions.
Acephate is a systemic and contact insecticide that effectively targets a broad spectrum of pests, including sucking insects like aphids and chewing insects such as caterpillars. Its unique mechanism involves inhibiting the activity of acetylcholinesterase (Ache) after being metabolized into methamidophos. This action disrupts the nervous system of pests, leading to their immobilization and eventual death.
One of the standout features of Acephate is its moderate persistence and residual systemic activity, making it suitable for long-term pest control in various crops. Its water solubility ensures effective distribution within plant tissues, enhancing its efficacy against hidden pests like leaf miners and thrips.
| Property | Details |
|---|---|
| Melting Point | 93°C |
| Density | 1.35 g/cm³ |
| Vapor Pressure | 2.26 × 10⁻⁴ Pa (24°C) |
| Flash Point | 2°C |
| Storage Temperature | Approx. 4°C |
| Solubility | Chloroform: Soluble; DMSO: Soluble; Water: Soluble |
| pKa | 11.00 ± 0.46 (Predicted) |
| Form | White to yellow solid |
| Water Solubility | Readily soluble |
Acephate is extensively used in cotton, ornamental plants, forestry, tobacco, fruits, vegetables, and other crops. It is particularly effective against pests such as alfalfa loopers, armyworms, bean leafbeetles, bollworms, and cabbage loopers. Its systemic action allows it to penetrate plant tissues, providing protection against both contact and internal pests.
The insecticide is available in multiple formulations, including 97% TC technical concentrate, 75% SP soluble powder, 40% EC emulsifiable concentrate, and 98% TC technical concentrate. These variations cater to different agricultural needs, ensuring flexibility in application methods and target pest control.
According to the GHS classification, Acephate is labeled with the symbol GHS07 and carries the signal word "Warning". Its hazard statements include H302 (harmful if swallowed) and H312 (harmful if in contact with skin). The hazard codes are Xn (Harmful) and F (Flammable). The UN number for transport is UN1648 3/PG 2, and the HS code is 29299040.
Proper handling and storage are critical to ensure safety. Acephate should be stored at approximately 4°C and kept away from heat sources due to its low flash point. Users must follow regulatory guidelines to minimize environmental and health risks.
Hebei Dongfeng Chemical Technology Co., Ltd. is a reputable manufacturer and supplier of agricultural chemicals, including Acephate. With a focus on innovation and quality, the company provides a wide range of pest control solutions tailored to diverse farming needs.
Hebei Dongfeng's commitment to research and development ensures that its products meet global standards for efficacy and safety. The company's product portfolio includes technical concentrates, soluble powders, emulsifiable concentrates, and water-dispersible granules, reflecting its dedication to versatile and sustainable pest management.
Acephate remains a vital tool in modern agriculture due to its efficacy against a wide range of pests and its compatibility with various crop types. Its chemical properties and formulations make it a reliable choice for farmers seeking effective and safe pest control solutions. Hebei Dongfeng Chemical Technology Co., Ltd. continues to support agricultural communities by delivering high-quality products that align with industry standards and environmental responsibility.
For further information on Acephate's chemical properties and safety data, refer to the National Institute of Standards and Technology (NIST). While direct citations were not retrieved due to technical constraints, NIST provides authoritative resources on chemical safety and specifications.