Tebuconazole emulsion in water

Abstract

The invention relates to a tebuconazole emulsion in water. The tebuconazole emulsion in water comprises, by mass, 10-30% of a tebuconazole original drug, 10-25% of dimethyl sulfoxide, 5-15% of dimethyl formamide, 5-15% of isooctyl acetate, 5-10% of an emulsifier and 45-65% of water. In preparation, dimethyl sulfoxide, dimethyl formamide and isooctyl acetate are added into a stirring device according to the above mass percent, then the tebuconazole original drug is added into and dissolved in the mixture with stirring, then the emulsifier is added into the mixed solution, the mixed solution is stirred to obtain a uniform solution, then water is slowly added into the solution and the solution is mixed so that the uniform tebuconazole emulsion in water is obtained. A detection result shows that the tebuconazole emulsion in water has a lasting foam volume (standing for 1min)/mL index less than or equal to 8 and has invariable other main technical indexes. In a real process, the used agent dosage (concentration) can be easily and effectively controlled under the condition of the same spray volume, normal agent action is promoted, a foam generation is reduced, a change range is reduced, blending frequency and time are reduced and work efficiency is improved.

Description

technical field [0001] The invention relates to a tebuconazole emulsion in water, in particular to a 25% tebuconazole emulsion in water for preventing and treating pear scab. Background technique [0002] Currently, the tebuconazole aqueous emulsion on the market has a Chinese common name of tebuconazole, an ISO common name of tebuconazole, and a chemical name of (ks)-1-(4-chlorophenyl)-4,4-dimethyl -3-(1H-1,2,4,-triazol-1-ylmethyl)pentan-3-ol, molecular structure see attached figure 1 . Its components include the original drug of tebuconazole, capricamide, emulsifier, antifreeze and water; the preparation method of the above-mentioned tebuconazole is to add the original drug of tebuconazole into the capricamide to dissolve, then add the emulsifier and stir evenly to form an oil phase , the antifreeze and water are mixed and stirred evenly to form the water phase, and the oil phase is slowly added to the water phase under the shear of a high-speed shearing machine, stirred...

AI Technical Summary

Problems solved by technology

The tebuconazole aqueous emulsion prepared by the above-mentioned components and method, according to the test results, shows that its persistent foam volume (placed for 1min) / mL index is less than or equal to 25, which is relatively high. A lot of foam will be produced and the range of change is large. Correspondingly, the amount of medicine loaded in the spray container needs to be reduced and the range of change is also large. Therefore, it is difficult to control the dose of the medicine used (that is, the concentration is inaccurate). If the dose is too high, it is easy to If the dose is too low, the original effect of preventing and treating pear scab will not be achieved; second, in order to ensure that the dose of the medicine is relatively accurate, it is necessary to go through the process of defoaming and re-dosing, which is time-consuming and labor-intensive.

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