
Acephate, also known as Orthene, is a widely used organophosphate foliar insecticide that has been a cornerstone in pest management since the 1990s. Developed by Hebei Dongfeng Chemical Technology Co., Ltd., this compound is renowned for its efficacy against a broad spectrum of pests, including leaf miners, caterpillars, sawflies, thrips, and aphids in both crops and horticultural settings. This article delves into the chemical properties, advantages, technical specifications, application scenarios, and company background of Acephate, providing a comprehensive overview of its significance in modern agriculture and pest control.
Acephate is a white to yellow solid with a melting point of 93°C and a density of 1.35 g/cm³. Its solubility in water, chloroform, and DMSO makes it highly versatile for various formulations. The vapor pressure of 2.26 × 10⁻⁴ Pa at 24°C indicates its low volatility, while its flash point of 2°C highlights its flammability risks. Proper storage at approximately 4°C ensures stability. The pKa of 11.00 ± 0.46 suggests its ability to remain active in neutral to slightly alkaline environments.
However, Acephate is classified under the GHS07 symbol with a Warning signal word. Hazard statements H302+H312 indicate it is harmful if swallowed or in contact with skin, while Hazard Codes Xn, F denote its toxicity and flammability. The UN1648 3/PG 2 classification underscores its need for careful handling and transport. Despite these risks, Acephate is considered less toxic to mammals due to its metabolic conversion to methamidophos, which is less active in animal systems.
| 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 | Water, Chloroform, DMSO |
| pKa | 11.00 ± 0.46 (Predicted) |
| Form | Solid |
| Color | White to Yellow |
| Water Solubility | Readily Soluble |
Acephate offers several advantages that make it a preferred choice for pest control:
Acephate is widely applied in various agricultural and horticultural settings:
Its residual systemic activity ensures that pests are controlled even after application, making it a valuable tool for integrated pest management (IPM) programs. Acephate is particularly useful in organic farming due to its low environmental persistence compared to other organophosphates.
Hebei Dongfeng Chemical Technology Co., Ltd. is a leading manufacturer of agrochemicals and pesticides, specializing in the production of organophosphate insecticides like Acephate. With a focus on innovation and safety, the company has established itself as a trusted supplier in the global market. Their product portfolio includes multiple formulations of Acephate, ensuring flexibility for farmers and agricultural professionals.
Hebei Dongfeng's commitment to quality control and environmental responsibility is reflected in their compliance with international standards. Their 97% TC, 75% SP, and 40% EC formulations are designed to meet the specific needs of different crops and pest populations. The company's research and development efforts continue to enhance the efficacy and safety of their products, contributing to sustainable agriculture practices.
Acephate remains a critical tool in modern agriculture, offering a balance of effectiveness, versatility, and safety. Its chemical properties and application versatility make it an ideal choice for managing a wide range of pests. Hebei Dongfeng Chemical Technology Co., Ltd. plays a vital role in supplying high-quality Acephate formulations, supporting farmers and horticulturists worldwide. For more information, visit the Acephate product page or explore Hebei Dongfeng's website.
While direct citations from NIST could not be retrieved due to technical constraints, the information provided is based on the product specifications and industry standards available. For authoritative data on chemical properties and safety, consult NIST's Chemical Safety Data Sheets or the U.S. Food and Drug Administration resources.