BE478478A - - Google Patents
Info
- Publication number
- BE478478A BE478478A BE478478DA BE478478A BE 478478 A BE478478 A BE 478478A BE 478478D A BE478478D A BE 478478DA BE 478478 A BE478478 A BE 478478A
- Authority
- BE
- Belgium
- Prior art keywords
- sep
- water
- solvent
- mixture
- solutions
- Prior art date
Links
- 239000002904 solvent Substances 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- 230000000749 insecticidal Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- 125000004429 atoms Chemical group 0.000 claims description 2
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- -1 hexachiorcyciohexane Chemical class 0.000 claims 1
- 150000002430 hydrocarbons Chemical group 0.000 claims 1
- 150000002500 ions Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 229920001098 polystyrene-block-poly(ethylene/propylene) Polymers 0.000 description 32
- 239000000243 solution Substances 0.000 description 9
- 239000002917 insecticide Substances 0.000 description 4
- YVGGHNCTFXOJCH-UHFFFAOYSA-N DDT Chemical compound C1=CC(Cl)=CC=C1C(C(Cl)(Cl)Cl)C1=CC=C(Cl)C=C1 YVGGHNCTFXOJCH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N acetic acid ethyl ester Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- JLYXXMFPNIAWKQ-UHFFFAOYSA-N γ Benzene hexachloride Chemical compound ClC1C(Cl)C(Cl)C(Cl)C(Cl)C1Cl JLYXXMFPNIAWKQ-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- PEXKIPRKGNEQPD-UHFFFAOYSA-N ClC=1C(=C(C=CC=1)C(C(Cl)(Cl)Cl)C1=CC=CC=C1)Cl Chemical compound ClC=1C(=C(C=CC=1)C(C(Cl)(Cl)Cl)C1=CC=CC=C1)Cl PEXKIPRKGNEQPD-UHFFFAOYSA-N 0.000 description 1
- SWXVUIWOUIDPGS-UHFFFAOYSA-N Diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 235000019439 ethyl acetate Nutrition 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- OVARTBFNCCXQKS-UHFFFAOYSA-N propan-2-one;hydrate Chemical compound O.CC(C)=O OVARTBFNCCXQKS-UHFFFAOYSA-N 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Agronomy & Crop Science (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
<Desc/Clms Page number 1>
Solutions insecticides.
La présente invention concerne des solutions insectici- des à base de composes actifsorganiques tels que hexachlor- cyclohexane, dichlordiphényle trichloréthane, etc., pouvant être avantageusement utilisées pour effectuer des pulvérisations dans les endroits habités, appartements, établissements publics, etc.
Il existe de nombreux solvants, kérosène, benzène, al- cools, etc., qui permettent de préparer des solutions relative- ment concentrées de ces insecticides organiques. Ces solutions peuvent être utilisées pour la préparation d'émulsions ou de sus- pensions aqueuses.
Lorsque ces solutions concentrées ont été obtenues par dissolution de l'élément actif dans un solvant miscible à l'eau il est possible également de préparer des solutions plus diluées par addition d'une certaine quantité d'eau. Néanmoins on observe que la solubi'Lité de l'insecticide diminue très rapidement lorsque
<Desc/Clms Page number 2>
croit la quantité d'eau présente dans le mélange solvant, de sorte qu'une quantité importante de solvant reste nécessaire pour solubiliser des quantités relativement faibles de l'insec- ticide.
La mise en solution de 2 gr. d'hexachlorcyclohexane isomère [gamma] ou de 2 gr. de DDT dans un Kgr de mélange acétone-ea.u ne peut s'effectuer qu'a la condition que ce mélange contienne 425 ou 550 gr d'acétone respectivement. Pareilles solutions S'avèrent très coûteuses en raison du prix élevé du solvant.
D'autre part, la pulvérisation et l'évaporation dans les en- droits habités, de quantités aussi importantes de solvant, pro- voquent une odeur et une atmosphère généralement désagréables.
La présente invention a pour objet la préparation de solutions aqueuses contenant une quantité drôlement actif suf- fisante pour obtenir l'effet insecticide recherché en ne faisant appel qu'à des quantités réduites de solvant miscible à l'eau.
Selon l'invention ces solutions sont obtenues par dissolution du composé organique actif dans un mélange miscible solvant-eau, auquel on a ajouté 4 à 10% en poids d'un éther oxyde de formule générale R - u - P dans laquelle R représente un radical hydrocarboné dont la somme des poids atomiques est au moins égaie à luu et P un polyéthylène glycol ayant au moins 8 atomes de C.
La demanderesse a observé que,, par application de ce procédé, il est possible de réduire a 150 gr/Kgr la quantité de solvant nécessaire pour solubiliser intégralement 2 gr. d'hexa- chlorcyciohexane isomère Y ou 2 gr de DDT dans un Kgr de mélange solvant-eau.
L'acétone, la diacétone alcool, l'alcool éthylque, l'acétate d'éthyle ou tout autre solvant ayant un groupe fonc- tionnel hydrophile peuvent notamment être utilisés comme solvants.
<Desc/Clms Page number 3>
EMI3.1
Comme agents soinbiiisants, des produits commerciaux tels que les igepaLs et les isaultex peuvent convenir.
A titre non limitatif il est donné ci-dessous deux compositions insecticides obtenues par application du procédé de 1'invention.
EXEMPLE 1.- ,
EMI3.2
Solution insecticide à 2%. d'hexachioicyoiohexane isomère [gamma]:
EMI3.3
isomère ,1 de ljhexachlorcyclohexane (pureté 9'Fll,) 2 gr
EMI3.4
<tb> Parfums <SEP> solubles <SEP> dans <SEP> L'eau <SEP> 10 <SEP> gr
<tb>
<tb> Acétone <SEP> 15u <SEP> gr <SEP>
<tb>
<tb> Igepal <SEP> CA <SEP> 6u <SEP> gr
<tb>
<tb> Eau <SEP> 778 <SEP> gr
<tb>
<tb>
<tb> luuu <SEP> gr <SEP>
<tb>
EXEMPLE 2. -
EMI3.5
bolution de DD1 à ;o:
EMI3.6
<tb> DDT <SEP> technique <SEP> ' <SEP> 2 <SEP> gr
<tb>
<tb>
<tb> Parfum <SEP> soluble <SEP> dans <SEP> l'eau <SEP> lu <SEP> gr
<tb>
<tb>
<tb> Acétone <SEP> 150 <SEP> gr
<tb>
<tb>
<tb> Emultex <SEP> uR <SEP> 70 <SEP> gr
<tb>
<tb>
<tb> .!!:au <SEP> 768 <SEP> gr
<tb>
<tb>
<tb>
<tb> 1000 <SEP> gr
<tb>
Des résultats analogues peuvent être obtenus avec d'au- tres solvants contenant un groupe fonctionnel hydrophile.
<Desc / Clms Page number 1>
Insecticidal solutions.
The present invention relates to insecticide solutions based on organic active compounds such as hexachlorcyclohexane, dichlordiphenyl trichloroethane, etc., which can be advantageously used for spraying in inhabited places, apartments, public establishments, etc.
There are many solvents, kerosene, benzene, alcohols, etc., which allow the preparation of relatively concentrated solutions of these organic insecticides. These solutions can be used for the preparation of aqueous emulsions or suspensions.
When these concentrated solutions have been obtained by dissolving the active element in a solvent miscible with water, it is also possible to prepare more dilute solutions by adding a certain quantity of water. Nevertheless, it is observed that the solubility of the insecticide decreases very rapidly when
<Desc / Clms Page number 2>
increases the amount of water present in the solvent mixture, so that a significant amount of solvent is still required to solubilize relatively small amounts of the insecticide.
Dissolving 2 gr. of isomeric hexachlorcyclohexane [gamma] or 2 gr. of DDT in one Kgr of acetone-water mixture can only be carried out on condition that this mixture contains 425 or 550 g of acetone respectively. Such solutions are very expensive due to the high cost of the solvent.
On the other hand, the spraying and evaporation in inhabited areas of such large quantities of solvent causes a generally unpleasant odor and atmosphere.
The object of the present invention is the preparation of aqueous solutions containing a sufficiently active quantity to obtain the desired insecticidal effect by using only reduced quantities of water-miscible solvent.
According to the invention, these solutions are obtained by dissolving the active organic compound in a miscible solvent-water mixture, to which has been added 4 to 10% by weight of an ether oxide of general formula R - u - P in which R represents a hydrocarbon radical whose sum of atomic weights is at least equal to luu and P a polyethylene glycol having at least 8 atoms of C.
The Applicant has observed that, by applying this process, it is possible to reduce to 150 g / kg the quantity of solvent necessary to completely dissolve 2 g. of hexa-chlorcyciohexane isomer Y or 2 g of DDT in one kg of solvent-water mixture.
Acetone, diacetone alcohol, ethyl alcohol, ethyl acetate or any other solvent having a hydrophilic functional group can in particular be used as solvents.
<Desc / Clms Page number 3>
EMI3.1
As conditioning agents, commercial products such as igepaLs and isaultexes may be suitable.
By way of nonlimiting, two insecticidal compositions obtained by applying the process of the invention are given below.
EXAMPLE 1.-,
EMI3.2
2% insecticidal solution. hexachioicyoiohexane isomer [gamma]:
EMI3.3
isomer, 1 of hexachlorcyclohexane (purity 9'Fll) 2 gr
EMI3.4
<tb> Fragrances <SEP> soluble <SEP> in <SEP> Water <SEP> 10 <SEP> gr
<tb>
<tb> Acetone <SEP> 15u <SEP> gr <SEP>
<tb>
<tb> Igepal <SEP> CA <SEP> 6u <SEP> gr
<tb>
<tb> Water <SEP> 778 <SEP> gr
<tb>
<tb>
<tb> luuu <SEP> gr <SEP>
<tb>
EXAMPLE 2. -
EMI3.5
bolution from DD1 to; o:
EMI3.6
<tb> DDT <SEP> technical <SEP> '<SEP> 2 <SEP> gr
<tb>
<tb>
<tb> Scent <SEP> soluble <SEP> in <SEP> water <SEP> lu <SEP> gr
<tb>
<tb>
<tb> Acetone <SEP> 150 <SEP> gr
<tb>
<tb>
<tb> Emultex <SEP> uR <SEP> 70 <SEP> gr
<tb>
<tb>
<tb>. !!: at <SEP> 768 <SEP> gr
<tb>
<tb>
<tb>
<tb> 1000 <SEP> gr
<tb>
Similar results can be obtained with other solvents containing a hydrophilic functional group.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE478478A true BE478478A (en) |
Family
ID=126232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE478478D BE478478A (en) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE478478A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0090178A1 (en) * | 1982-03-09 | 1983-10-05 | Bayer Ag | Pesticidal formulations |
-
0
- BE BE478478D patent/BE478478A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0090178A1 (en) * | 1982-03-09 | 1983-10-05 | Bayer Ag | Pesticidal formulations |
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