Fenvalerate oil solution and use thereof

A technology of fenvalerate and oil preparation, applied in the field of pesticides, can solve the problems of low concentration and the like, and achieve the effects of good quick effect, stable field control effect and convenient processing

Inactive Publication Date: 2009-04-15
INST OF PLANT PROTECTION HEBEI ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

4. Low concentration

Method used

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  • Fenvalerate oil solution and use thereof
  • Fenvalerate oil solution and use thereof
  • Fenvalerate oil solution and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Preparation of 1.0% fenvalerate oil

[0035] First take the following raw materials by weight:

[0036] Active ingredient Fenvalerate: 1.0%,

[0037] Isopropanol: 1.0%,

[0038] Sesame Oil: 10.0%,

[0039] Cottonseed Oil: 88.0%.

[0040] Then, first add the active ingredient fenvalerate into isopropanol and heat at 50°C, stir for 1 hour to dissolve, then add sesame oil and cottonseed oil, stir for 1 hour and cool down to 30°C, filter to remove the residue and get the product.

[0041] The appearance of the obtained fenvalerate oil is a transparent uniform oily liquid; it has good low temperature compatibility, and no sediment or suspended matter will be separated out after refrigerated for 48 hours at -5°C; the volatility is low, and the volatility rate is determined by the filter paper suspension method Not more than 30%, good plant safety, determined by the open-hole method, the flash point is greater than 40°C (for ground use); kinematic viscosity (20°C) is 8mm ...

Embodiment 2

[0043] Preparation of 4.0% fenvalerate oil

[0044] First take the following raw materials by weight:

[0045] Active ingredient Fenvalerate: 4.0%,

[0046] Dimethylformamide: 10%,

[0047] Sesame Oil: 10.0%,

[0048] Cottonseed Oil: 76%

[0049] Then, first add the active ingredient fenvalerate into dimethylformamide and heat at 40°C, stir for 2 hours to dissolve, then add sesame oil and cottonseed oil, stir for 1 hour and cool down to 23°C, filter to remove the residue and get the product.

[0050] The appearance of the obtained fenvalerate oil is a transparent uniform oily liquid; it has good low temperature compatibility, and no sediment or suspended matter will be separated out after refrigerated for 48 hours at -5°C; the volatility is low, and the volatility rate is determined by the filter paper suspension method Not more than 30%, good plant safety, determined by the open-hole method, the flash point is greater than 40°C (for ground use); the kinematic viscosity (2...

Embodiment 3

[0052] Preparation of 10.0% fenvalerate oil

[0053] First take the following raw materials by weight:

[0054] Active ingredient Fenvalerate: 10.0%,

[0055] Benzyl alcohol: 1%,

[0056] Sesame Oil: 10.0%,

[0057] Cottonseed Oil: to 100%.

[0058] First add the active ingredient fenvalerate into benzyl alcohol and heat at 45°C, stir for 0.5 hours to dissolve, then add sesame oil and cottonseed oil, stir for 1.5 hours and cool down to 20°C, filter to remove the residue and get the product.

[0059] The appearance of the obtained fenvalerate oil preparation is a transparent uniform oily liquid; the low temperature compatibility is good, and at -5°C, no sediment or suspended matter will be separated out after refrigerated for 48 hours; the volatility is low, and the results of the filter paper suspension method are volatile. The rate shall not be greater than 30%, the plant safety is good, and the flash point is greater than 40°C (for ground use) as determined by the open-h...

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Abstract

The invention discloses a fenvalerate oil solution comprising the following ingredients (by weight portions): fenvalerate 1.0-60.0%, stabilizing agent 1-10% and balancing dissolvent. The oil solution can be applied for controlling grasshoppers and Locusta migratoria manilensis.

Description

technical field [0001] The invention belongs to the field of pesticides, more specifically, the invention relates to a fenvalerate oil agent and its application. Background technique [0002] Fenvalerate, commonly known as fenvalerate or fenvalerate, is a synthetic pyrethroid insecticide with a non-three-membered ring structure and has high biological activity. The original drug is a yellow to brown transparent viscous oily liquid, part of which crystallizes out at room temperature and has a slight chemical smell. Stable to light and heat, relatively stable in weakly acidic and neutral media, easy to decompose in alkaline media. Insoluble in water, easily soluble in ethanol, acetone, ether, kerosene, chloroform, cyclohexanone, xylene and other organic solvents. Fenvalerate is a moderately toxic insecticide, the acute oral LD50 of the original drug in rats is 451mg / kg, the acute percutaneous LD50 of rats is >5000mg / kg, and the acute inhalation LC50 of rats is >101mg / m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N53/02A01N25/02A01P7/04
Inventor 党志红高占林潘文亮李耀发
Owner INST OF PLANT PROTECTION HEBEI ACAD OF AGRI & FORESTRY SCI
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