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Water-soluble gel preparation containing paraquat dichloride

A technology of paraquat dichloride and water-soluble gel, which is applied in the field of pesticides, can solve problems such as skin contact burns, low production efficiency, and paraquat poisoning, and achieve increased production costs, improved safety factors, and flexible and convenient use Effect

Active Publication Date: 2012-01-25
NANJING REDSUN BIOCHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the widespread use of paraquat, incidents of paraquat poisoning or skin contact burns continue to occur, so that countries or regions such as the European Union have banned or restricted the use of paraquat
Local farmers had to choose other herbicides with higher cost and slower acting speed for weed control, and even resumed the most time-consuming and inefficient manual weeding operation

Method used

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  • Water-soluble gel preparation containing paraquat dichloride
  • Water-soluble gel preparation containing paraquat dichloride
  • Water-soluble gel preparation containing paraquat dichloride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Table 1

[0028]

[0029] The active ingredient in the water-soluble gel is based on paraquat cation, and the concentration is 5%. The dynamic viscosity (25°C, measured by a rotational viscometer) of the water-soluble gel is 22000mPas, which can be stored at 0°C for 7 days and It is still stable after heat storage at 54°C for 14 days, and the dilution stability of the water-soluble gel agent is qualified (the method refers to the national standard GB19308-2003 for paraquat aqueous solution), and the water-soluble speed is relatively fast, and it is completely dissolved within 45 seconds (at 25°C, at 100 times the total dissolution time in water).

Embodiment 2

[0031] Table 2

[0032]

[0033]

[0034] The active ingredient in the water-soluble gel is based on paraquat cation, and the concentration is 10%. The viscosity of the water-soluble gel (25°C, measured by a rotational viscometer) is 24000mPas, and it is cold stored at 0°C for 7 days and 54 It is still stable after 14 days of heat storage at ℃, and the dilution stability of the water-soluble gel agent is qualified (the method refers to the national standard GB19308-2003 for paraquat aqueous solution), and the water-soluble speed is relatively fast, and it is completely dissolved within 45 seconds (at 25 ℃, at 100 times total dissolution time in water).

Embodiment 3

[0036] table 3

[0037]

[0038] The active ingredient in the water-soluble gel is based on paraquat cation, and the concentration is 15%. The viscosity of the water-soluble gel (25° C., measured by a rotational viscometer) is 25000 mPas. It is cold stored at 0° C. for 7 days and 54 It is still stable after 14 days of heat storage at ℃, and the dilution stability of the water-soluble gel agent is qualified (the method refers to the national standard GB19308-2003 for paraquat aqueous solution), and the water-soluble speed is relatively fast, and it is completely dissolved within 45 seconds (at 25 ℃, at 100 times total dissolution time in water).

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Abstract

The invention relates to a water-soluble gel preparation containing paraquat dichloride, which belongs to the technical field of pesticide. The water-soluble gel preparation comprises 0.5 to 45 mass percent of paraquat dichloride (which accounts for 0.362 and 32.58 mass percent of paraquat cation) and 5 to 40 percent of surfactants and also comprises safe auxiliary ingredients such as emetic, warning colouration, odor agents, bitter agents and the like and the balance water. The water-soluble gel preparation containing the paraquat dichloride has the advantages that the excellent weeding activity is realized, the use method is flexible and convenient, in addition, the water-soluble gel preparation is safer to people and animals, and the production and the use are more convenient.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and relates to a water-soluble gel containing paraquat dichloride. technical background [0002] Paraquat, a quick-acting contact-killing bipyridine herbicide, is currently one of the most widely used herbicides in the world. Its global sales and usage are second only to glyphosate, ranking the second largest herbicide agent products. However, since paraquat has strong acute toxicity to humans or other mammals, and there is no effective antidote, once paraquat is swallowed by mistake or intentionally, without timely and correct rescue treatment, it will cause serious harm to human beings. or animals causing serious injury or even death. [0003] In order to improve the safety of paraquat, especially for human beings, the International Food and Agriculture Organization stipulates that three safety auxiliaries must be added to paraquat preparations—triazol pyrimidinone, odorant and warning col...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01N25/04A01N25/32A01P13/00
Inventor 杨寿海郭崇友杨柳刘德友肖婷婷
Owner NANJING REDSUN BIOCHEM CO LTD
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