Cyhalofop-butyl microemulsion and preparation method thereof

Abstract

The invention discloses cyhalofop-butyl microemulsion and a preparation method thereof. The microemulsion comprises the components in percentage by weight: 1 to 50 percent of cyhalofop-butyl, 1 to 20 percent of solvent, 1 to 20 percent of cosolvent, 5 to 30 percent of emulsifier and 50 to 90 percent of water. The preparation method comprises the following steps of: uniformly stirring and mixing the solvent, the cosolvent and the cyhalofop-butyl according to the weight percentage at the rotation speed of 50 to 200 revolutions per minute; adding the emulsifier according to a required ratio, and uniformly stirring; and finally adding the water and continuously stirring for 1 to 2 hours to prepare a uniform and transparent solution product. The cyhalofop-butyl microemulsion is mainly used for preventing and controlling gramineous weeds such as caper euphorbia seed, echinochloa crusgalli, digitaria sanguinalis, paspalum distichum, setaria viridis, eleusine indica, alopecurus aequalis and the like in rice seedling field, direct seeding field and transplanting field. The microemulsion can effectively improve the use efficiency of the medicament, and reduce environmental pollution.

Description

technical field [0001] The invention relates to a pesticide herbicide microemulsion, in particular to the herbicide cyhalofop-emulsion microemulsion and a preparation method thereof. Background technique [0002] The chemical name of the compound cyhalofop-ethyl is (R)-2-[4(4-cyano-2-fluorophenoxy)phenoxy]-butyl propionate. [0003] Its structural formula is: [0004] [0005] The English common name of cyhalofop-butyl is cyhalofop-butyl, and the product name is Qianjin. CAS number: 122008-85-9. [0006] Cyhalofop-ethyl is the only one of the aryloxyphenoxypropionic acid herbicides that is highly safe for rice. It is a systemic conductive herbicide, which is absorbed by the leaves and leaf sheaths of the plant, conducted by the phloem, and accumulated in the plant. In the meristem area, acetyl-CoA carboxylase is inhibited, fatty acid synthesis stops, cell growth and division cannot proceed normally, membrane system and other lipid-containing structures are destroyed, a...

AI Technical Summary

Problems solved by technology

Due to the large amount of organic solvents used in the emulsifiable concentrate formulations, the waste of resources is large, and it is easy to pollute the environment. The relatively large amount of use results in a large loss of active ingredients of pesticides

At the same time, during the processing of emulsifiable concentrate, because a large amount of organic solvents are used, it is very easy to endanger the producers.

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