CN104351175A - Methomyl soluble powder - Google Patents
Methomyl soluble powder Download PDFInfo
- Publication number
- CN104351175A CN104351175A CN201410531430.6A CN201410531430A CN104351175A CN 104351175 A CN104351175 A CN 104351175A CN 201410531430 A CN201410531430 A CN 201410531430A CN 104351175 A CN104351175 A CN 104351175A
- Authority
- CN
- China
- Prior art keywords
- methomyl
- parts
- soluble powder
- surfactant
- former medicine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000005916 Methomyl Substances 0.000 title claims abstract description 41
- UHXUZOCRWCRNSJ-QPJJXVBHSA-N methomyl Chemical compound CNC(=O)O\N=C(/C)SC UHXUZOCRWCRNSJ-QPJJXVBHSA-N 0.000 title claims abstract description 41
- 239000000843 powder Substances 0.000 title claims abstract description 25
- 239000004094 surface-active agent Substances 0.000 claims abstract description 11
- 239000002562 thickening agent Substances 0.000 claims abstract description 7
- 230000007935 neutral effect Effects 0.000 claims abstract description 5
- 239000003814 drug Substances 0.000 claims description 19
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 10
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 10
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 10
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 claims description 9
- 229940039790 sodium oxalate Drugs 0.000 claims description 9
- 239000000428 dust Substances 0.000 abstract description 10
- 239000007864 aqueous solution Substances 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 239000008155 medical solution Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 10
- 239000007788 liquid Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000000575 pesticide Substances 0.000 description 4
- 238000009472 formulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002917 insecticide Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000052 vinegar Substances 0.000 description 2
- 235000021419 vinegar Nutrition 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 235000007516 Chrysanthemum Nutrition 0.000 description 1
- 244000189548 Chrysanthemum x morifolium Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 244000141359 Malus pumila Species 0.000 description 1
- 235000011430 Malus pumila Nutrition 0.000 description 1
- 235000015103 Malus silvestris Nutrition 0.000 description 1
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 1
- 239000005842 Thiophanate-methyl Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000000749 insecticidal effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003987 organophosphate pesticide Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- BTURAGWYSMTVOW-UHFFFAOYSA-M sodium dodecanoate Chemical compound [Na+].CCCCCCCCCCCC([O-])=O BTURAGWYSMTVOW-UHFFFAOYSA-M 0.000 description 1
- 229940082004 sodium laurate Drugs 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- QGHREAKMXXNCOA-UHFFFAOYSA-N thiophanate-methyl Chemical compound COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC QGHREAKMXXNCOA-UHFFFAOYSA-N 0.000 description 1
- KJAMZCVTJDTESW-UHFFFAOYSA-N tiracizine Chemical compound C1CC2=CC=CC=C2N(C(=O)CN(C)C)C2=CC(NC(=O)OCC)=CC=C21 KJAMZCVTJDTESW-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Abstract
The invention discloses methomyl soluble powder which comprises components in parts by weight as follows: 90-92 parts of methomyl technical, 1-8 parts of a surfactant and 2-7 parts of a thickening agent. According to the methomyl soluble powder, used raw materials are simple, the preparation process is simple, and the product quality is reliable; the prepared soluble powder is easy to dissolve and convenient to apply; the neutral surfactant is adopted, so that the methomyl soluble powder cannot be dissolved, an aqueous solution is neutral, and hydrolysis cannot be caused; and when a medical solution is prepared from the methomyl soluble powder, flying dust is basically prevented, the aqueous solution is not hydrolyzed, and the use safety is better.
Description
Technical field
The present invention relates to a kind of agricultural chemicals, particularly a kind of Methomyl soluble powder.
Background technology
Methomyl is a kind of wide spectrum, efficient, speed is killed, the carbamic acid vinegar pesticide insecticide of low-residual.Insect chrysanthemum vinegar class and Determination of Organophosphorus Pesticide being produced to resistance has special efficacy, composes more than 120 kinds the control worm of 81 national registrations.The domestic formulation generally used has missible oil, aqua etc.
Methomyl soluble powder is registered in China by du pont company the earliest, and adopted name is 9,0%0,000 clever soluble powder, its transport, safe and convenient to use, one of principal item becoming pesticides application very soon.
The former medicine of Methomyl that domestic insecticide factory produces is white crystal, and being processed to soluble powder could use, but adopts alkaline surfactant, and after being made into the aqueous solution, aobvious alkaline quality is unstable.The fusing point of Methomyl is no more than 80 DEG C, is easy to caking and blocks in existing crushing operation, causes producing not smooth, and therefore the preparation of solubility Methomyl pulvis exists larger difficulty, the solubility Methomyl pulvis of domestic shortage reliable in quality.
Summary of the invention
The object of the present invention is to provide a kind of Methomyl soluble powder.
The technical solution used in the present invention is:
A kind of Methomyl soluble powder, by weight, its proportioning is: the former medicine of Methomyl 90 ~ 92 parts, 1 ~ 8 part, surfactant, thickener 2 ~ 7 parts.
Preferably, the pulp furnish of above-mentioned pulvis is: the former medicine of Methomyl 90 ~ 92 parts, 3 ~ 6 parts, surfactant, thickener 3 ~ 6 parts.
Preferably, the surfactant used in above-mentioned pulvis is the anhydrous sodium oxalate of neutrality.
Preferably, the thickener used in above-mentioned pulvis is hydroxyethylcellulose.
Especially, Methomyl soluble powder, by weight, its proportioning is: the former medicine of Methomyl 91 ~ 92 parts, anhydrous sodium oxalate 3.0 ~ 4.5 parts, hydroxyethylcellulose 4.3 ~ 6.0 parts.
The invention has the beneficial effects as follows:
Methomyl soluble powder of the present invention, the raw material of use is simple, and preparation technology is simple, reliable product quality.The soluble powder prepared, be easy to dissolve, dispenser is convenient.Adopt neutral surfactant, Methomyl soluble powder is not decomposed, the aqueous solution is aobvious neutral, is not hydrolyzed.
When Methomyl soluble powder of the present invention is formulated as liquid, not airborne dust substantially, the aqueous solution is not hydrolyzed, and safety in utilization is better.
Embodiment
Below in conjunction with embodiment, further illustrate the present invention.
In the former medicine of Methomyl used in following examples and comparative example, produced by Haili Guixi Chemical Pesticides Co., Ltd, the content of Methomyl is 90% (mass percentage).
The number of following examples and comparative example, all refers to mass parts.
The preparation method of following examples and comparative example is:
By the former medicine of the load weighted Methomyl of proportioning, anhydrous sodium oxalate and hydroxyethylcellulose, promote through elevator, be dosed into by hand in premixer, mix, enter in airslide disintegrating mill and pulverize, the material through pulverizing enters sack cleaner and secondary mixer, is mixed in secondary mixer, through magnetic processor absorption irony, then enter automatic packaging machine.
For the purpose of being convenient to compare, if no special instructions, in following examples, the order number of pulvis is 600 orders.
Embodiment 1:
The former medicine of Methomyl 91 parts, anhydrous sodium oxalate 3.0 parts, hydroxyethylcellulose 6.0 parts.
Embodiment 2:
The former medicine of Methomyl 91 parts, anhydrous sodium oxalate 4.5 parts, hydroxyethylcellulose 4.5 parts.
Embodiment 3:
The former medicine of Methomyl 92 parts, anhydrous sodium oxalate 3.7 parts, hydroxyethylcellulose 4.3 parts.
Comparative example 1:
The former medicine of Methomyl 91 parts, lauryl sodium sulfate 3.0 parts, hydroxyethylcellulose 6.0 parts.
Comparative example 2:
The former medicine of Methomyl 91 parts, anhydrous sodium oxalate 4.5 parts, carboxymethyl cellulose 4.5 parts.
Comparative example 3:
The former medicine of Methomyl 92 parts, sodium laurate 3.7 parts, hydroxyethylcellulose 4.3 parts.
The aqueous stability of dissolvable agents pulvis, airborne dust Characteristics Detection
The sample of Example 1,2,3 is some, be configured to the aqueous solution of 4% respectively, detected according to Q/HLG010-2012 standard by Hunan Chemical Research Institute, contrast is the stability of 54 DEG C of constant temperature after 14 days (storing 2 years at being equivalent to normal temperature 25 DEG C) in aqueous.
| Project | Index (%) | Remarks |
| Embodiment 1 | 4.2 | —— |
| Embodiment 2 | 4.1 | —— |
| Embodiment 3 | 4.0 | —— |
| Embodiment 1 | 4.18 | 54 DEG C of constant temperature detected after 14 days |
| Embodiment 2 | 4.12 | 54 DEG C of constant temperature detected after 14 days |
| Embodiment 3 | 4.05 | 54 DEG C of constant temperature detected after 14 days |
As can be seen from the table, soluble powder of the present invention, has fabulous stability, even if be formulated as the aqueous solution, Acceleration study still has splendid stability.
The middle airborne dust of production process detects
In process of production, carried out long-term detection according to " ambient air quality " GB3095-2012 to airborne dust by Hunan Chemical Research Institute technique center, result is as follows:
Visible, pulvis of the present invention, in preparation process, can not produce dust substantially, substantially pollution-free to environment.
Airborne dust when simulation uses detects
Get 10g pulvis respectively, from degree of depth 20cm, the glass cylinder of diameter 10cm describes that the bottleneck of device is thrown in, and pulvis is freely fallen, the time that record dust deposits completely, according to " ambient air quality " GB3095-2012 sample analysis.Experimental result is as follows:
| Sequence number | Particle size | Sedimentation time | Particle (particle diameter≤2.5 μm) is detected after 150 seconds |
| Embodiment 1 | 600 orders | 34 seconds | 142 |
| Comparative example 1 | 600 orders | 80 seconds | 250 |
| Comparative example 2 | 600 orders | 92 seconds | 278 |
| Comparative example 3 | 600 orders | 108 seconds | 380 |
| Generally commercially available 90% Methomyl | 600 orders | 148 seconds | 412 |
As can be seen from the table, the pulvis of the embodiment of the present invention 1, not easily airborne dust, safer during use.
Insecticidal effect detects data
Embodiment 1,2,3 is filled a prescription with cotton as field trial, adopts spray pesticide method.The liquid medicine of formula is diluted to 480 mg/kg, total consumption of 4500 kg/ha liquid medicine, and dispenser interval is 10 days, and annual dispenser is 11 times.
Three kinds of formulas of comparative example 1,2,3 as field trial, adopt spray pesticide method with cotton.The liquid medicine of formula is all diluted to 600 mg/kg, total consumption of 4500 kg/ha liquid medicine, and dispenser interval is 10 days, and annual dispenser is 11 times.
Different thiophanate-methyl wetting powder control apple tree ring spot test data statistical form
As can be known from the table data, there is tremendous influence in the performance of selection to product of surfactant, and embodiment 1 formula is best, and stability, airborne dust rate are low, can reduce formulation rate.When equal formulation rate, there is better control efficiency.
Claims (5)
1. a Methomyl soluble powder, by weight, its proportioning is: the former medicine of Methomyl 90 ~ 92 parts, 1 ~ 8 part, surfactant, thickener 2 ~ 7 parts.
2. Methomyl soluble powder according to claim 1, is characterized in that: its proportioning is: the former medicine of Methomyl 90 ~ 92 parts, 3 ~ 6 parts, surfactant, thickener 3 ~ 6 parts.
3. Methomyl soluble powder according to claim 1 and 2, is characterized in that: surfactant is neutral anhydrous sodium oxalate.
4. Methomyl soluble powder according to claim 1 and 2, is characterized in that: thickener is selected from hydroxyethylcellulose.
5. a Methomyl soluble powder, by weight, its proportioning is: the former medicine of Methomyl 91 ~ 92 parts, anhydrous sodium oxalate 3.0 ~ 4.5 parts, hydroxyethylcellulose 4.3 ~ 6.0 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410531430.6A CN104351175B (en) | 2014-10-10 | 2014-10-10 | A kind of Methomyl soluble powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410531430.6A CN104351175B (en) | 2014-10-10 | 2014-10-10 | A kind of Methomyl soluble powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104351175A true CN104351175A (en) | 2015-02-18 |
| CN104351175B CN104351175B (en) | 2016-04-13 |
Family
ID=52518570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410531430.6A Active CN104351175B (en) | 2014-10-10 | 2014-10-10 | A kind of Methomyl soluble powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104351175B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4032654A (en) * | 1974-06-28 | 1977-06-28 | E. I. Du Pont De Nemours And Company | Water-soluble, liquid concentrates of S-methyl-[(methyl-carbamoyl)oxy]-thioacetimidate and methyl N', N'-dimethyl-N-[(methyl-carbamoyl)oxy]-1-thiooxamimidate |
| US4235872A (en) * | 1979-06-04 | 1980-11-25 | E. I. Du Pont De Nemours And Company | Microencapsulated methomyl insecticide |
-
2014
- 2014-10-10 CN CN201410531430.6A patent/CN104351175B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4032654A (en) * | 1974-06-28 | 1977-06-28 | E. I. Du Pont De Nemours And Company | Water-soluble, liquid concentrates of S-methyl-[(methyl-carbamoyl)oxy]-thioacetimidate and methyl N', N'-dimethyl-N-[(methyl-carbamoyl)oxy]-1-thiooxamimidate |
| US4235872A (en) * | 1979-06-04 | 1980-11-25 | E. I. Du Pont De Nemours And Company | Microencapsulated methomyl insecticide |
Non-Patent Citations (1)
| Title |
|---|
| 顾卫东: ""90%万灵可溶性粉剂的特点及施用技术"", 《湖北植保》 * |
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| Publication number | Publication date |
|---|---|
| CN104351175B (en) | 2016-04-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 335400 West of Jiqi Road and north of Weiqi Road, sulfur and phosphorus chemical base, Guixi City, Yingtan City, Jiangxi Province Patentee after: Haili Guixi New Material Technology Co.,Ltd. Address before: 335400 Baili Industrial Zone, Guixi City, Yingtan City, Jiangxi Province Patentee before: HAILI GUIXI CHEMICAL PESTICIDES CO.,LTD. |