Chloroacetyl chloride is an important organic chemical intermediate widely used in pesticides , medicines, dyes, various additives, etc. As an excellent acylating agent, the most used field is the pesticide industry. Chloroacetyl chloride replaces traditional organic raw materials for pesticide synthesis, which can greatly improve product yield and quality, and reduce pollution. Therefore, chloroacetyl chloride has a broad application prospect in the pesticide industry. This article will focus on the application of chloroacetyl chloride in the pesticide industry. Alachlor, chemical name 2-chloro-N-(2,6-diethylphenyl)-N (methoxy-acetamide, synthesis method: reaction of 2,6-diethylaniline with aqueous formaldehyde solution, 2,6-diethyltoluidine is formed, and then reacted with chloroacetyl chloride to form an adduct which is reacted with methanol, and ammonia is used as an acid binding agent to remove one molecule of hydrogen chloride to obtain alachlor. Amine is a selective pre-emergence herbicide , mainly used in corn, soybean, peanut, sugar cane, cotton, rapeseed and other crops, prevention and treatment of 1-year-old weeds and some broad-leaved weeds. It is currently the backbone of global dryland herbicides. . Acetochlor, chemical name α-chloro-2,6-diethyl-N-ethoxymethyl acetyl instead of aniline, reacted with 2,6-diethylaniline and formaldehyde to obtain N-methylidene-2. 6-Diethylaniline, which is reacted with chloroacetyl chloride to give α-chloro-2,6-diethyl-N-chloromethylalkylacetanilide, which is then reacted with ethanol to give acetochlor. Acetochlor is a pre-emergence herbicide that is suitable for removal of 1-year-old broadleaf weeds and certain perennial weeds in corn, cotton, peanut and soybean fields. It is a highly active, crop-safe and moderately effective weeding. Agent. Dissolved oxygen controller is a device used to monitor and control the dissolved oxygen content in water. Dissolved Oxygen Controllers require a Dissolved Oxygen Sensor to be connected. The sensor is used to measure the dissolved oxygen concentration in the water and transmit the data to the controller. The DO controller controls the dissolved oxygen content in the water body by adjusting other parameters according to the preset dissolved oxygen target range. The dissolved oxygen meter has 2 relays, which can set the closing value and breaking value, and 2-way 4-20mA current output, which can control the device more accurately.
It should be noted that the control of dissolved oxygen level involves many factors, including water body temperature, pressure, salinity and other water quality parameters. Daruifuno's dissolved oxygen controller supports compensation function. The dissolved oxygen controller also has RS485 output and time history recording function, and supports various installation methods.
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The specific control method depends on the requirements of the application and the design of the system. A common control method is to control the dissolved oxygen content by adjusting the amount of aeration. Aeration is the process of increasing dissolved oxygen by passing air or oxygen through the water. The dissolved oxygen controller can automatically adjust the aeration amount or stirring intensity according to the dissolved oxygen data measured by the sensor to keep the dissolved oxygen concentration within a predetermined range.
Application of Chloroacetyl Chloride in Pesticide Industry