CN100464636C - Aqueous emulsion of pesticides Bassa, carbosulfan, phosphor methylpyrimidine, and preparation method - Google Patents
Aqueous emulsion of pesticides Bassa, carbosulfan, phosphor methylpyrimidine, and preparation method Download PDFInfo
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- CN100464636C CN100464636C CNB2005100321770A CN200510032177A CN100464636C CN 100464636 C CN100464636 C CN 100464636C CN B2005100321770 A CNB2005100321770 A CN B2005100321770A CN 200510032177 A CN200510032177 A CN 200510032177A CN 100464636 C CN100464636 C CN 100464636C
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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- Pest Control & Pesticides (AREA)
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Abstract
An aquatic emulsion for preventing and treating the pests of rice, fruit tree and warehouse is prepared from fenobucarb or carbosulfan or pirimiphos-methyl, emulsifier, thickening agent, antifreezing agent, and stabilizer and deionized through dissolving or fusing, homogenizing and dispersing. Its advantage is no environmental pollution.
Description
Technical field
The present invention relates to aqueous emulsion of agricultural chemicals Bassa and preparation method thereof.
Background technology
Bassa ISO adopted name: fenobucarb trade name: Ba Sha; Bufencarb; Osbac; Baycarb; Brodan; Carvil; Hopcin.Chemical name: 2-secondary butyl phenenyl-N-methyl carbamate
Structural formula:
33～34 ℃ of pure product fusing points are 660mg/l in the water in the time of 30 ℃, are soluble in common organic solvents, as acetone, chloroform, benzene,toluene,xylene etc.To alkali and strong acid instability.Can be used for preventing and treating on the crops such as paddy rice, vegetables, cotton, fruit tree various pests such as rice fulgorid, thrips, leafhopper, paddy stem borer, rice leaf roller, aphid, fruit tree budworm, mainly be insect to be poisoned to death by acetylcholine esterase inhibition, insect had strong action of contace poison, and have certain stomach toxicity, fumigate and ovicidal action.
The English general Carbosulfan by name of carbosulfan, chemical name is 2,3-dihydro-2,2-dimethyl-7-benzofuranyl [(dibutylamine) sulfenyl] methyl carbamate
Structural formula:
Pure product are colourless or the pale yellow oily liquid body, and 124～128 ℃ of boiling points, industrial goods are brown viscous liquid.Solvability in dimethylbenzene, ethane, chloroform, methane or methyl alcohol is 50%; Stable in neutrality or alkaline medium, unstable in strong acid or highly basic; Storage at normal temperature stability is more than 2 years.Carbosulfan is the low derivative that poisons of carbofuran, carbofuran can be prevented and treated 40 various pests, about 2500 tons of China's annual output, because toxicity height, many places begin to ban use of, carbosulfan is the optimal alternative kind of carbofuran, is a kind of broad spectrum disinfestation, nematicide, miticide, can effectively prevent and treat the green black peach aphid of potato, paddy rice weevil, blind pound resemble, various insects such as scale insect, plant hopper, leafhopper, cutworm, thrips, mite.Have higher interior absorption, the longevity of residure is longer, and adult, larva are all had preventive effect preferably.Be mainly used in and prevent and treat various pests, mite on fruit tree, vegetables, cotton, the paddy rice.At present, the former medicine annual production of China is about hundreds of tons, this kind main manufacturer has: Hunan Haili Chemical Co., Ltd., chemical research institute trial (demonstration) plant, Zhejiang, Jiangsu brass hill insecticide factory, jiangsu wuxi insecticide factory etc., the registration formulation is 20% missible oil, is organic solvent more than 60% in its missible oil.Still there are not Bassa and carbosulfan aqueous emulsion.
The English general pirimiphos-methyl by name of pirimiphos-methyl, chemical name is O-[2-(lignocaine)-6-methyl-4-pyrimidine radicals]-O, O-dimethyl disulfide substituted phosphate
Structural formula:
Former medicine outward appearance is a yellow liquid; Fusing point: 15 ℃; Solvability is 5mg/l in 30 ℃ of water, is soluble in most of organic solvents; Hydrolysis under strong acid or strong alkaline condition to thermally labile, begins more than 50 ℃ to decompose, and temperature is high more, decomposes and accelerates.Low toxicity, no teratogenesis, carcinogenic, mutagenesis.Be a kind of efficient, low toxicity, low-residual organophosphorus insecticide, the miticide that Britain in 1970 foretells that inside door company is developed into, have stronger tag, stomach poison function and good fumigation action, also can immerse leaf tissue and have the blade face translocation, be a kind of broad spectrum insecticide medicament, its mechanism of action is to suppress the activity of cholinesterase in the organism.It not only can be used for the control of crop various pests such as grain, cotton, fruit tree, vegetables, and can prevent and treat sanitary insect pests such as grain storage insect and mosquitos and flies effectively, and the mankind there are not teratogenesis, carcinogenic, mutagenic effect, it is one of good pesticide species of recommending to the utmost of FAO (Food and Agriculture Organization of the United Nation), can prevent and treat the insect in each stage of growing in grain intragranular portion, lasting medicine, virulence for anti-organic phosphorous insecticide red flour beetle strain is good than some other insecticide also, seldom produces mutual pesticide resistance.The pirimiphos-methyl preparation is based on 50% missible oil, owing to contain a large amount of organic solvents in the missible oil, in producing and using, produce unpleasant toxic odor, inflammable and explosive, cause unsafe factor for production, storing and use, and use the back that soil and environment are also polluted.Therefore, the good novel pesticide preparation of research and development Environmental compatibility is the striving direction of whole agricultural chemicals circle.But because above three kinds of agricultural chemicals and water dissolubility are good inadequately, difficulty is processed into waterborne preparation, still is difficult the waterborne preparation of three kinds of agricultural chemicals at present both at home and abroad.
Summary of the invention
The purpose of this invention is to provide aqueous emulsion of agricultural chemicals Bassa, carbosulfan, pirimiphos-methyl and preparation method thereof.The present invention is to be active ingredient with Bassa or carbosulfan or pirimiphos-methyl, adds proper auxiliary agent and is mixed with aqueous emulsion.
Implementation method of the present invention is described in detail in detail below:
A kind of aqueous emulsion that contains Bassa or carbosulfan or pirimiphos-methyl, consisting of Bassa or carbosulfan or pirimiphos-methyl is 5%～30% (w/w), surfactant 5%～30% (w/w), antifreeze 1%～10% (w/w), thickener 0%～5% (w/w), water 25%～89% (w/w).
The surfactant that this aqueous emulsion is selected for use comprises anionic, nonionic or their mixed type, dodecyl benzene sulfonate, lauryl sulfate, No. 100, farming breast, No. 500, farming breast, agricultural emulsifier NO, BY, castor oil polyoxyethylene ether, polyoxyethylene nonylphenol ether phosphate etc. are arranged, and preferred surfactants is the polyoxyethylene nonylphenol ether phosphate.
Thickener of the present invention comprises natural thickener, as xanthans, gum Arabic etc.; Semisynthetic thickener is as the cellulose methyl compound; And synthetic thickener, as polyacrylate, polyvinyl alcohol etc., preferred thickening is xanthans, polyvinyl alcohol.
Be applicable to that antifreeze of the present invention comprises as propane diols, ethylene glycol or glycerine.Preferred antifreeze is an ethylene glycol.
Be applicable to that water of the present invention is deionized water.
The present invention is like this preparation: earlier Bassa or carbosulfan or pirimiphos-methyl are obtained even oil phase with the surfactant stirring; Then water, preservative, antifreeze etc. are mixed, form the homogeneous water, under normal temperature and high-speed stirred, oil phase is joined water (or water joins oil phase), form finely disseminated aqueous emulsion, measure the product average grain diameter obtain below 20.00 microns with the particle size distribution test instrument.The mixing speed that the present invention selects is 200 rev/mins～2000 rev/mins; Mixing time is 3～20 minutes.
Aqueous emulsion belongs to the pesticides new formulation scope.It is to be dissolved in water-fast organic solvent by water-fast original liquid body or former medicine solid, a kind of pesticidal preparations that the liquid dispersion of gained forms in water.Outward appearance is opaque band blue streak white emulsion.Because poor or do not contain organic solvent in the aqueous emulsion of the present invention, no unpleasant toxic odor, nonflammable explosive, safe in utilization, reduced pollution to soil and environment, improved greatly and stored and transported and user's safety producing.Prove that through the test of pesticide effectiveness aqueous emulsion drug effect of the present invention is suitable with the missible oil drug effect.
Implementation method of the present invention is described in detail in detail below:
Embodiment
In order further to understand the present invention, the present invention will be described in more detail now to propose the following example and the test of pesticide effectiveness.
Embodiment 1
Take by weighing the former medicine of Bassa 30 grams, the polyoxyethylene nonylphenol ether phosphate is 20 grams, dodecyl benzene sulfonate 10 grams are mixed into oil phase, take by weighing ethylene glycol 10 grams, gum Arabic 5 grams, deionized water 25 grams, be mixed into water, adjusting mixing speed is 200 rev/mins, oil phase is joined water after, stir and obtained 30% Bassa aqueous emulsion in 20 minutes.
Embodiment 2
Take by weighing the former medicine of Bassa 20.5 grams, castor oil polyoxyethylene ether is 10 grams, lauryl sulfate 5 grams are mixed into oil phase, take by weighing ethylene glycol 4 grams, xanthan gum solution 2 grams, deionized water 58.5 grams, be mixed into water, adjusting mixing speed is 1000 rev/mins, water is joined oil phase after, stir and obtained 20% Bassa aqueous emulsion in 15 minutes.
Embodiment 3
Take by weighing the former medicine of carbosulfan 5 grams, the polyoxyethylene nonylphenol ether phosphate is that 5 grams are mixed into oil phase, take by weighing propane diols 1 gram, deionized water 89 grams, be mixed into water, adjusting mixing speed is 2000 rev/mins, after oil phase joined water, stir and obtained 5% carbosulfan aqueous emulsion in 3 minutes.
Embodiment 4
Take by weighing former medicine 20 grams of carbosulfan, BY4 gram, No. 100 8 grams of farming breast are mixed into oil phase, take by weighing ethylene glycol 3 grams, polyvinyl alcohol 2 grams, deionized water 63 grams, be mixed into water, adjusting mixing speed is 1500 rev/mins, water is joined oil phase after, stir and obtained 20% carbosulfan aqueous emulsion in 17 minutes.
Embodiment 5
Pirimiphos-methyl crude oil 10 grams, polyoxyethylene nonylphenol ether phosphate are that 7 grams are mixed into oil phase, take by weighing glycerine 3 grams, cellulose methyl compound 2.5 grams, deionized water 77.5 grams, be mixed into water, adjusting mixing speed is 1000 rev/mins, after oil phase joined water, stir and obtained 10% pirimiphos-methyl aqueous emulsion in 15 minutes.
Embodiment 6
Take by weighing former medicine 25 grams of pirimiphos-methyl, No. 500 10 grams of farming breast, agricultural emulsifier NO 10 grams are mixed into oil phase, take by weighing ethylene glycol 3 grams, polyacrylate 4 grams, deionized water 48 grams, be mixed into water, adjusting mixing speed is 500 rev/mins, water is joined oil phase after, stir and obtained 25% pirimiphos-methyl aqueous emulsion in 18 minutes.
By sample was stored 14 days at 54 ℃, to store 7 days down for 0 ℃, its physics and stable chemical performance see Table 1, table 2, table 3 and table 4.
Table 1
Table 2
Table 3
Table 4
EXPERIMENTAL EXAMPLE 1:
Bassa aqueous emulsion, Bassa missible oil are compared mensuration to the indoor virulence of aphid, mythimna separata, the results are shown in Table 5.
Table 5 20% Bassa missible oil, 20% Bassa aqueous emulsion LC
50Value
Carbosulfan aqueous emulsion, carbosulfan missible oil are compared test to the indoor virulence of aphid, the results are shown in Table 6.
Table 6 20% carbosulfan missible oil, 20% carbosulfan aqueous emulsion LC
50Value
| Test is handled | Regression equation | Correlation coefficient | LC 50(mg/l) |
| 20% carbosulfan missible oil | Y＝1.4454+2.4776x | 0.9829 | 27.21 |
| 20% carbosulfan aqueous emulsion | Y＝1.1017+2.6258x | 0.9890 | 30.52 |
20% pirimiphos-methyl missible oil, 20% pirimiphos-methyl aqueous emulsion are compared test to the indoor virulence of mosquito, the results are shown in Table 7.
Table 7 20% pirimiphos-methyl missible oil, 20% pirimiphos-methyl aqueous emulsion are to the LC of mosquito
50Value
| Test is handled | Regression equation | Correlation coefficient | LC 50(mg/l) |
| 20% pirimiphos-methyl missible oil | Y＝3.9639+2.3969x | 0.9998 | 7.07 |
| 20% pirimiphos-methyl aqueous emulsion | Y＝3.1998+2.0456x | 0.9942 | 7.59 |
EXPERIMENTAL EXAMPLE 2:
20% Bassa aqueous emulsion product and 20% Bassa missible oil compare prevents and treats the water rice hopper test of pesticide effectiveness, is born by agriculture chemical examination institution, Hunan, Institute of Plant Protection, academy of agricultural sciences, Zhejiang.Result of the test sees Table 8.
Table 8 20% Bassa aqueous emulsion and 20% Bassa missible oil control water rice hopper field control effectiveness test result
EXPERIMENTAL EXAMPLE 3
20% carbosulfan aqueous emulsion and 20% carbosulfan missible oil compare, and prevent and treat the citrus leaf-miner test of pesticide effectiveness, and test is born by agriculture chemical examination institution, Hunan, Institute of Plant Protection, academy of agricultural sciences, Zhejiang.Result of the test sees Table 9.
Table 9 20% carbosulfan aqueous emulsion and 20% carbosulfan missible oil control citrus leaf-miner field test results
EXPERIMENTAL EXAMPLE 4
20% pirimiphos-methyl aqueous emulsion and 20% pirimiphos-methyl missible oil compare, and mosquito is carried out the test of pesticide effectiveness, and test is born by the Hunan Province Center for Disease Control and the Nanjing military medicine prevention academy of sciences, result of the test table 10,
Table 10 20% pirimiphos-methyl aqueous emulsion and 20% pirimiphos-methyl missible oil control mosquito result of the test
EXPERIMENTAL EXAMPLE 5
20% pirimiphos-methyl aqueous emulsion and conventional control storage pest aluminum phosphate compare, grain storage insect ostomatid is carried out the test of pesticide effectiveness, test is born by Hunan Province's grain science research institute, the result shows at 20% pirimiphos-methyl aqueous emulsion consumption 15ppm, preventive effect to ostomatid reaches more than 96%, suitable with the preventive effect of aluminum phosphate, but 20% pirimiphos-methyl aqueous emulsion to environment and biological toxicity far below aluminum phosphate.
Claims (2)
1, agricultural chemicals Bassa aqueous emulsion, it is characterized in that with the Bassa being active ingredient, adding surfactant, antifreeze, thickener, water are mixed with aqueous emulsion, aqueous emulsion consist of active ingredient Bassa 5%～30% (weight), surfactant 5%～30% (weight), antifreeze 1%～10% (weight), thickener 0%～5% (weight), water 25%～89% (weight); Selected surfactant is dodecyl benzene sulfonate, castor oil polyoxyethylene ether, polyoxyethylene nonylphenol ether phosphate, and used thickener is xanthans, gum Arabic, and used antifreeze is an ethylene glycol, and water is deionized water.
2, a kind of preparation method of the aqueous emulsion of Bassa according to claim 1, it is characterized in that: earlier Bassa and surfactant stirring are obtained even oil phase, then water, preservative, antifreeze are mixed, form the homogeneous water, under normal temperature and high-speed stirred, oil phase is joined water, or water joins oil phase, form finely disseminated aqueous emulsion, measure the product average grain diameter obtain below 20.00 microns with the particle size distribution test instrument, the mixing speed of selecting is 200 rev/mins～2000 rev/mins, and mixing time is 3～20 minutes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100321770A CN100464636C (en) | 2005-09-22 | 2005-09-22 | Aqueous emulsion of pesticides Bassa, carbosulfan, phosphor methylpyrimidine, and preparation method |
| PCT/CN2006/000916 WO2007033539A1 (en) | 2005-09-22 | 2006-05-08 | Aqueous emulsions of fenobucarb, carbosulfan or pirimiphos-methyl and production methods thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100321770A CN100464636C (en) | 2005-09-22 | 2005-09-22 | Aqueous emulsion of pesticides Bassa, carbosulfan, phosphor methylpyrimidine, and preparation method |
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| CN1759676A CN1759676A (en) | 2006-04-19 |
| CN100464636C true CN100464636C (en) | 2009-03-04 |
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| CNB2005100321770A Active CN100464636C (en) | 2005-09-22 | 2005-09-22 | Aqueous emulsion of pesticides Bassa, carbosulfan, phosphor methylpyrimidine, and preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103039519B (en) * | 2013-01-28 | 2014-05-07 | 李涛 | Special comprehensive anti-freezing, insecticiding, egg-killing and sterilization emulsion for yangtao trees, and preparation method of emulsion |
| CN103783075B (en) * | 2014-03-07 | 2015-09-23 | 南通联农农药制剂研究开发有限公司 | Pesticidal combination containing pirimiphos-methyl and preparation thereof and application |
| CN110037048A (en) * | 2019-05-21 | 2019-07-23 | 山东圣鹏科技股份有限公司 | A kind of cooperation and its application of a variety of dosage forms containing pirimiphos-methyl |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149388A (en) * | 1996-07-18 | 1997-05-14 | 童湘 | Permethrin-bassa-malathion (jubama) missible oil |
| CN1231825A (en) * | 1999-03-08 | 1999-10-20 | 梁东海 | Mixed insecticide and its preparing method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127898C (en) * | 2001-07-11 | 2003-11-19 | 深圳市诺普信农化有限公司 | Hexaflumuron carbosulfan insecticide composition |
| CN1220432C (en) * | 2002-12-17 | 2005-09-28 | 苏州富美实植物保护剂有限公司 | Aqueous carbosulfan emulsion and preparing method thereof |
| CN1631160A (en) * | 2004-11-29 | 2005-06-29 | 岳阳高新技术产业开发区金牛生物科技有限公司 | Agricultural products storage insecticide and its production method and purpose |
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- 2005-09-22 CN CNB2005100321770A patent/CN100464636C/en active Active
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- 2006-05-08 WO PCT/CN2006/000916 patent/WO2007033539A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149388A (en) * | 1996-07-18 | 1997-05-14 | 童湘 | Permethrin-bassa-malathion (jubama) missible oil |
| CN1231825A (en) * | 1999-03-08 | 1999-10-20 | 梁东海 | Mixed insecticide and its preparing method |
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| Publication number | Publication date |
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| CN1759676A (en) | 2006-04-19 |
| WO2007033539A1 (en) | 2007-03-29 |
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Assignee: Haili Guixi Chemical Industry Farm Chemicals Co., Ltd. Assignor: Hunan Chemical Engineering Inst. Contract record no.: 2011430000019 Denomination of invention: Aqueous emulsion of pesticides Bassa, carbosulfan, phosphor methylpyrimidine, and preparation method Granted publication date: 20090304 License type: Exclusive License Open date: 20060419 Record date: 20110328 |