
Acephate, also known as Orthene, is a widely used organophosphate insecticide that has played a significant role in agricultural pest management since its development. As a foliar spray, it is effective against a broad spectrum of pests, including aphids, leaf miners, and caterpillars. This article provides an in-depth analysis of Acephate's chemical properties, technical specifications, safety considerations, applications, and the company behind its production. Additionally, we explore its relevance in modern agricultural practices and its alignment with industry standards.
Acephate is a versatile insecticide that functions as both a contact and systemic agent. Its mode of action involves the inhibition of acetylcholinesterase (Ache), an enzyme critical for nerve signal transmission in insects. This mechanism disrupts the nervous system of pests, leading to their incapacitation and eventual death. Notably, Acephate is metabolized into methamidophos, a compound that is less toxic to mammals, making it a relatively safer option for agricultural use compared to other organophosphates.

The following table summarizes the key technical specifications of Acephate:
| 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 classified under the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) with the hazard symbol GHS07 and a warning signal word. The hazard statements H302+H312 indicate that it is harmful if swallowed and may cause skin irritation. The hazard codes Xn (Xn: Harmful) and F (Flammable) highlight its potential to cause harm and its flammability. The UN number UN1648 3/PG 2 denotes its classification as a hazardous material for transport.

The safety data sheet (SDS) for Acephate emphasizes the importance of proper handling and storage. Users should wear protective clothing, gloves, and goggles to minimize exposure. In case of accidental ingestion or skin contact, immediate medical attention is advised. The product should be stored in a cool, dry place away from heat sources and incompatible materials.
Acephate is widely used in agricultural and horticultural settings to control a variety of pests. Its systemic activity allows it to be absorbed by plants, providing protection against both chewing and sucking insects. Key applications include:
The product's moderate persistence ensures that it remains effective for an extended period while minimizing environmental impact. Its compatibility with various crop types makes it a preferred choice for integrated pest management (IPM) programs.
Hebei Dongfeng Chemical Technology Co., Ltd. offers Acephate in multiple formulations to suit different agricultural needs:
Each formulation is designed to optimize application efficiency and efficacy. For example, emulsifiable concentrates (EC) are ideal for foliar sprays, while water-dispersible granules (WDG) are suitable for tank mixing and irrigation systems.
Hebei Dongfeng Chemical Technology Co., Ltd. is a leading manufacturer of agricultural chemicals, specializing in the production of insecticides, herbicides, and other crop protection products. With a commitment to innovation and quality, the company has established itself as a reliable supplier in the global market. Their product range includes Acephate, which is produced in compliance with international standards for safety and efficacy.
For more information about Hebei Dongfeng Chemical Technology Co., Ltd., visit their official website.
Acephate remains a critical tool in modern agriculture, offering effective pest control with a relatively low risk to non-target organisms. Its chemical properties, combined with its versatility in application, make it a valuable asset for farmers and horticulturists. As the agricultural sector continues to evolve, the role of products like Acephate in sustainable pest management will remain essential. By adhering to safety guidelines and leveraging the expertise of manufacturers like Hebei Dongfeng Chemical Technology Co., Ltd., stakeholders can ensure the responsible use of this important insecticide.
1. National Institute of Standards and Technology (NIST). (n.d.). NIST Guide to the SI. Retrieved from https://www.nist.gov
2. Acephate Product Page. (n.d.). Retrieved from https://www.dfchempest.com/acephate.html