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Penoxsulam effervescent tablet and preparation method thereof
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A technology for penoxsulam and effervescent tablets, applied in the field of pesticides, can solve the problems of high use cost, endanger human health, environmental pollution, etc., and achieve the effects of small size, convenient transportation and storage
Active Publication Date: 2016-05-11
嘉善县大云经济开发实业有限公司
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[0009] The purpose of the present invention is to overcome the disadvantages of environmental pollution, harm to human health and high use cost in the prior art and develop a high-content, environmentally friendly, high utilization rate and easy-to-use penoxsulam effervescent tablet agent
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Embodiment 1
[0024] Weigh 5% of penoxsulam raw powder, 4% of sodium lauryl sulfate, 3% of polycarboxylate, 4% of sodium lignosulfonate, 10% of citric acid, 5% of tartaric acid, 10% of sodium carbonate, Sodium bicarbonate 8%, talc 15%, cross-linked pyrrolidone 3%, DMA 2%, kaolin to 100%. After mixing it evenly, it is pulverized by a jet mill to obtain mother powder, 99% of which can pass through a 325-mesh sieve, and the mother powder is pressed into tablets in a tablet machine to obtain 5% penoxsulam effervescent tablets , the size of the tablet can be determined as needed. The penoxsulam effervescent tablet disintegrates automatically in water and forms a homogeneous suspension.
Embodiment 2
[0026] Weigh 25% of penoxsulam raw powder, 3% of sodium lauryl sulfate, 2% of polycarboxylate, 15% of tartaric acid, 10% of citric acid, 15% of potassium carbonate, 8% of potassium bicarbonate, hydroxymethyl Starch sodium 5%, magnesium stearate 2%, sodium tripolyphosphate 3%, brassinolide 0.01%, kaolin to 100%. After mixing it evenly, it is pulverized by a jet mill to obtain 99% of the mother powder that has passed through a 325-mesh standard sieve, and the mother powder is directly added to a tablet machine to be pressed into tablets to obtain 25% penoxsulam effervescent tablets. The size of the agent can be determined according to need. The penoxsulam effervescent tablet disintegrates automatically in water and forms a homogeneous suspension.
Embodiment 3
[0028] Weigh 50% of penoxsulam raw powder, 3% of sodium alkylnaphthalene sulfonate, 3% of polycarboxylate, 15% of tartaric acid, 14% of sodium bicarbonate, 3% of carboxymethyl cellulose, and 0.5% of cytokinin %, talcum powder to 100%. After mixing it evenly, it is pulverized by a jet mill to obtain 99% mother powder that passes through a 325 mesh standard sieve, and the mother powder is directly compressed into tablets in a tablet machine to obtain 50% penoxsulam effervescent tablets , the size of the tablet can be determined as needed. The penoxsulam effervescent tablet disintegrates automatically in water and forms a homogeneous suspension.
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Abstract
The invention relates to a penoxsulam effervescent tablet and a preparation method thereof. The penoxsulam effervescent tablet comprises penoxsulam, a wetting dispersant, an acid source, a carbon dioxide source, a binder, a disintegrating agent, a lubricating agent, a synergist and a carrier. The invention also discloses the preparation method of the penoxsulam effervescent tablet, and the method comprises the steps of processing solid raw materials into powder with certain fineness, and then directly tabletting dry powder to obtain the penoxsulam effervescent tablet. The tablet has the characteristics that the volume is small, the transportation and the storage are convenient, the tablet can be quickly disintegrated in water to form pesticide suspension suitable for spraying, and the tablet can be scattered into paddy field and can be widely applied to controlling weeds in paddy field.
Description
technical field [0001] The invention relates to the field of pesticides, in particular to a penoxsulam effervescent tablet. Background technique [0002] Penoxsulam, chemical name: 3-(2,2-difluoroethoxy)-N-(5,8-dimethoxy-[1,2,4]triazolo[1,5- C] pyrimidin-2-yl)-α,α,α-trifluorotolyl-2-sulfonamide, [0003] Molecular formula: C 16 h 14 f 5 N 5 o 5 S, [0004] Structural formula: [0005] [0006] Penoxsulam is a conductive herbicide, which is absorbed by the stems, leaves, young shoots and roots, and then transmitted to the meristem through the xylem and phloem, inhibiting plant growth, causing the growth points to lose green, and the terminal buds turn red 7~14 days after treatment , necrosis, and the plants died in 2 to 4 weeks; this agent is a strong acetolactate synthase inhibitor, the agent appears slowly, and it takes a certain period of time for the weeds to gradually die. [0007] Penoxsulam is very safe for rice. In 2005 and 2006, 10 rice varieties were spr...
Claims
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Application Information
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