CN1036791A - Stable 1,1,2-three chloro-1,2,2-Halothane, methyl alcohol and 1,2-dichloroethene azeotropic or Azeotrope-like compositions - Google Patents
Stable 1,1,2-three chloro-1,2,2-Halothane, methyl alcohol and 1,2-dichloroethene azeotropic or Azeotrope-like compositions Download PDFInfo
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- CN1036791A CN1036791A CN89101834A CN89101834A CN1036791A CN 1036791 A CN1036791 A CN 1036791A CN 89101834 A CN89101834 A CN 89101834A CN 89101834 A CN89101834 A CN 89101834A CN 1036791 A CN1036791 A CN 1036791A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/50—Solvents
- C11D7/5036—Azeotropic mixtures containing halogenated solvents
- C11D7/5068—Mixtures of halogenated and non-halogenated solvents
- C11D7/5077—Mixtures of only oxygen-containing solvents
- C11D7/5081—Mixtures of only oxygen-containing solvents the oxygen-containing solvents being alcohols only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
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Abstract
A kind of disclosed stable azeotropic or Azeotrope-like compositions comprise 1,1,2-three chloro-1,2, the 2-Halothane, methyl alcohol and 1, the low-alkoxy phenol of 2-trifluoro-ethylene azeotropic and Azeotrope-like compositions and about 0.001-0.004wt%, 1 of about 0.01-1.0wt%, the 2-butylene oxide ring, the Diisopropylamine of about 0.01-1.0wt% and at least a about 0.01-1.0wt% Nitromethane 99Min. or about 0.01-1.0wt%1,2-propylene oxide, said weight percent are that weight with azeotropic or Azeotrope-like compositions is benchmark.
Description
In a pending application, application number is 100220, and the applying date is to disclose on September 23rd, 1987 a kind ofly to contain 1,1,2-three chloro-1,2, the 2-Halothane, methyl alcohol and 1,2-dichloroethene Azeotrope-like compositions particularly clean modern circuit card as a kind of effective cleaning solvent compositions.
As what point out, in electrical equipment industry processing, for electric elements are soldered on the circuit card at above-mentioned application documents, must be coated to the one side of entire circuit plate with a kind of flux composition, afterwards the side of coating is passed through on preheater, then, melting solder.The metal of flux composition cleaning conduction partly also can strengthen the sticking power of scolder.Normally used solder flux is rosin basically, and it can use separately, perhaps uses together with active additive such as amine hydrochloride or alcohol derivative.
After welding, rosiny thermal destruction part, solder flux and flux residue are removed from circuit card with an organic solvent composition usually.
The requirement of pollutent is strict owing to remove from circuit card, therefore the process using steam deflux technology of most modern industry cleaning circuit plate.In a common steam deflux operation, circuit card is by the storage tank of a boiling organic solvent, above-mentioned organic solvent can be removed most rosin (comprising thermal destruction rosin), afterwards with circuit card by a storage tank that fills fresh solvent distillation, at last by the solvent vapo(u)r above a boiling storage tank, at this, a last cleaning with cleaning solvent is provided, this cleaning solvent can be solidified on the circuit card.In addition, before last cleaning, the straight run solvent also can be sprayed onto on the circuit card.
Yet, for the cleaning circuit plate, 1,1,2-three chloro-1,2, the 2-Halothane, methyl alcohol and 1,2-dichloroethene azeotropic or Azeotrope-like compositions are a kind of best solvent systems.In actual industrial was used, this solvent system was the same with other solvent system, will be stable in use and long storage, can stop the change of composition.Change and be meant composition oxidation, polymerization, mutual use etc.Its resultant has a negative impact to the cleaning or the solvent composition itself of circuit card.
The purpose of this invention is to provide 1,1 of a stable performance during use and long storage, 2-three chloro-1,2,2-Halothane, methyl alcohol and 1,2-Ethylene Dichloride azeotropic or Azeotrope-like compositions, and make the formation of the undesirable reactant that the cleaning circuit plate is had a negative impact minimum.
Stable azeotropic of the present invention or Azeotrope-like compositions comprise 1,1 of significant quantity, 2-three chloro-1,2, the 2-trichloroethane, the low-alkoxy phenol of methyl alcohol and 1,2-dichloroethene and effective stable quantity, 1, the 2-butylene oxide ring, Diisopropylamine and Nitromethane 99Min. and 1,2 epoxy prapane at least a.
Significant quantity is meant 1,1,2-three chloro-1,2, the 2-Halothane, the amount of methyl alcohol and each composition of 1,2-dichloroethene, when they in conjunction with the time, just formed azeotropic of the present invention or Azeotrope-like compositions.
Effectively stable quantity is meant low-alkoxy phenol, 1, and 2-butylene oxide ring, the amount of Diisopropylamine and Nitromethane 99Min. and 1,2 epoxy prapane at least a.When they with 1,1,2-three chloro-1,2, the 2-Halothane when azeotropic of methyl alcohol and 1,2-dichloroethene or Azeotrope-like compositions combine, just can be used and be stored in industry in practice, promptly industrial welcome, outward appearance is good, and corrodibility is little and resistance to overturning is good.
Stable azeotropic of the present invention or Azeotrope-like compositions comprise 1,1 of significant quantity, 2-three chloro-1,2, and the 2-Halothane, the mixture of methyl alcohol and 1,2-dichloroethene, this mixture forms azeotropic or Azeotrope-like compositions.And can contain the low-alkoxy phenol of 0.001～0.004 Wt% that has an appointment, 1 of about 0.01～1.0Wt%, the 2-butylene oxide ring, the 1,2 epoxy prapane of the Diisopropylamine of about 0.01～1.0Wt% and the Nitromethane 99Min. of about 0.01～1.0Wt% and about 001～1.0Wt% at least a.Said weight percent is that the weight according to azeotropic and Azeotrope-like compositions is benchmark.1, the 2-ethylene dichloride can exist with two kinds of isomeric forms, and is promptly anti--1,2-ethylene dichloride peace treaty-1,2-ethylene dichloride.
From a technical standpoint, azeotropic and Azeotrope-like compositions are the mixtures of two or more components, when under setting pressure, existing with liquid state, this mixture seethes with excitement under a constant temp substantially, the boiling temperature of the comparable component of this temperature is high or low, and the vapor composition that is provided is with coming down to the same through the ebullient liquid composition.The principal feature of azeotropic or Azeotrope-like compositions is under setting pressure, the boiling point of fluid composition is a fixed, vapor composition above the boiling composition comes down to the ebullient liquid composition, and promptly fractionation does not take place the component of actual fluid composition.Can recognize also that from technological standpoint when azeotropic or Azeotrope-like compositions boiled, each component and the weight percent of azeotropic or Azeotrope-like compositions all changed under different pressure.Thereby azeotropic or Azeotrope-like compositions will be used in the uniqueness that exists between each composition and get in touch and define, or define with the scope of each composition in the composition, again or according to there being ǚ tool stunned taking in pool probably to grow very the non-tool of the order Qi ㄒ river which rises in the northeastern part of Anhui Province of may lonely straight earth cooking a meal of making a noise under setting pressure
Azeotropic of the present invention or Azeotrope-like compositions comprise 1,1,2-three chloro-1,2,2-Halothane, the mixture of methyl alcohol and 1,2-dichloroethene.More precisely, the present composition comprises 1,1 of about 64～72Wt%, 2-three chloro-1,2,2-Halothane, the mixture of anti--1,2-dichloroethene of 5～7Wt% methyl alcohol and 23～29Wt%.
In addition, composition of the present invention comprises 1,1 of about 93Wt%, 2-three chloro-1,2,2-Halothane, the azeotropic or the Azeotrope-like mixtures of about 6Wt% methyl alcohol and about 1Wt% Ethylene Dichloride.
Each composition of azeotropic of the present invention or Azeotrope-like compositions all is known in the prior art.
Structure that can not the prediction azeotrope, therefore, it is same 1,1 just to be surprised to find the 1,2-dichloroethene of every kind of isomeric form, 2-three chloro-1,2, formed azeotropic of 2-Halothane and methyl alcohol or Azeotrope-like compositions just have extremely different components.1,2-dichloroethene can have suitable the 1,2-dichloroethenes of different amounts and instead-Ethylene Dichloride, as instead-1,2-dichloroethene can contain suitable-1,2-dichloroethene of 5Wt%.
Mixture contains 1,1 of the 68Wt% that has an appointment, 2-three chloro-1,2, the 2-Halothane, about 6Wt% methyl alcohol and about 26Wt% instead-1,2-dichloroethene, depressing (760mmHg) boiling point at standard atmosphere is 38.4 ℃, this also is the minimum azeotrope of boiling point.In addition by 1,1 of about 93Wt%, 2-three chloro-1,2, the 2-Halothane, the azeotrope of suitable-1,2-dichloroethene formation of about 6Wt% methyl alcohol and about 1Wt% is depressed at standard atmosphere (760mmHg), and boiling point is 39.7 ℃.
Above-mentioned azeotrope, the azeotrope that particularly contains anti--1,2-dichloroethene is the active solvent of cleaning circuit plate.The characteristics of these solvent compositions are to have extremely desirable lower boiling character, and are nonflammable, low toxicity and solder flux and flux residue had higher solubility property., the character and the corresponding lower boiling of these azeotropes, these compositions do not lose its good characteristic because can reclaiming at an easy rate and can reuse.
1,1,2-three chloro-1,2, the 2-Halothane, methyl alcohol and anti--1,2-dichloroethene azeotropic or Azeotrope-like compositions can finely be finished steam and desolvate in the technology to the cleaning of circuit card.Can recognize that in order to make solvent compositions peculiar property of the present invention useful to reality, some other required character also is introduced in the composition, be used for when industrial when this solvent system especially.
One of this required character is package stability, can know that some industrial materials usually will store for some time, and this storage may be a short-term, but also may reach several months, several years.Therefore, for the solvent compositions that uses, it should be stable, can resist any deleterious variation for a kind of.As the oxidation of composition, polymerization or interaction.This variation can make solvent change color, forms undesirable pair of product, as the polymeric material of acid and/or indissoluble.Have been found that the about 0.001～0.004Wt% of concentration range and 1 that adds low-alkoxy phenol, the concentration range of 2-butylene oxide ring is that 0.01～1.0Wt% can be as effective stabilizer.Low-alkoxy phenol has methoxyphenol, thanatol and propoxy-phenol, and preferred alkoxy phenol is a methoxyphenol, best is the 4-methoxyphenol.Can use the alkoxy phenol and 1 of higher concentration, the 2-butylene oxide ring, but under normal operation, higher concentration can not provide more benefit.
The required character of another industry is in use, and solvent is stable, as, in the aforesaid steam deflux technology, need the circuit card of cleaning at first must to remove most rosin, comprise thermal destruction rosin by a groove that boiling solvent is arranged.In this groove, organic solvent contacts for some time with thermal source.By after first groove, circuit card is again by filling the groove of fresh solvent distillation, at last by the solvent vapo(u)r above the boiling groove, this provide one last with the last cleaning of cleaning solvent, this cleaning solvent can be solidified on the circuit card.Therefore, in use, organic solvent in stablizing under the heating condition, provides fresh solvent distillation to be used for cleaning at last and being set in circuit card in keeping the ebullient groove or in the solvent of evaporation.For this reason, wish not change in solvent system, this variation is deleterious to the degraded of cleaning procedure and solvent.As mentioned above, this variation can be by oxidation, various compositions interactions cause in polymerization and the solvent system, as one of interaction of this minimum is 1,1,2-three chloro-1,2, interaction between 2-Halothane and the methyl alcohol, reaction can produce acid product and free chlorion between the above-mentioned composition.As early stage patent us-3,960, point out in 746(Gorski) at me, 1,1,2-three chloro-1, the chemical combination of 2-Halothane and low ethanol, particularly methyl alcohol is corrodible certain aluminium alloy as structured material in the cleaning circuit plate, also has zinc and aluminium.Have been found that in solvent system of the present invention add Nitromethane 99Min., concentration is that 0.01～1Wt% can stop this corrosion effectively.
Azeotropic that the present invention is stable or Azeotrope-like compositions another uncommon beat all be the effect of Diisopropylamine, having low-alkoxy phenol and 1, the 2-butylene oxide ring, in the Diisopropylamine, they can be with Nitromethane 99Min. or with 1, the 2-propylene oxide combines, and perhaps combines with the two, and this provides fabulous stability for solvent system of the present invention.About 0.01～the 1.0Wt% of concentration that 1,2 epoxy prapane exists, the about 0.01～1.0Wt% of the concentration range of spendable Diisopropylamine, the weight percent of these two is with 1,1,2- 1,2, the 2-Halothane, the azeotropic of methyl alcohol and 1,2-dichloroethene or the weight of Azeotrope-like compositions are benchmark.
From embodiment as can be seen, in solvent systems of the present invention, employed stablizer is a low-alkoxy phenol, 1, the 2-butylene oxide ring, Diisopropylamine, Nitromethane 99Min. and 1, it is by realizing with the interaction between relevant composition as key component with Diisopropylamine that 2-propylene oxide, above-mentioned stablizer make solvent-stable.Can use each stablizer of fixed higher concentration, but under normal operation, higher concentration can not provide more benefit.
Stable azeotropic of the present invention and Azeotrope-like compositions can contain 1 of the 64～72Wt% that has an appointment, 1,2-three chloro-1,2, the 2-Halothane, anti--1 of the methyl alcohol of about 5～7Wt% and about 23～29Wt%, the 2-Ethylene Dichloride, weight is that weight with azeotropic or Azeotrope-like compositions is benchmark, with the low-alkoxy phenol of about 0.001～0.004Wt%, 1 of about 0.01～1.0Wt%, 2-butylene oxide ring, the Diisopropylamine of about 0.01～1.0Wt% and concentration are about 1,2 epoxy prapane at least a that 0.01～1.0Wt% Nitromethane 99Min. and concentration are about 0.01～1.0Wt%.Best, stable composition contains Nitromethane 99Min. and 1,2 epoxy prapane simultaneously, and low-alkoxy phenol is the 4-methoxyphenol.
Be more preferably, stable composition of the present invention contains 1,1 of the 69Wt% that has an appointment, 2-three chloro-1,2, the 2-Halothane, about 6Wt% methyl alcohol and about 25Wt% instead-1,2-dichloroethene, weight is that the weight with azeotropic or Azeotrope-like compositions is benchmark.The low-alkoxy phenol that also contains the 0.0026Wt% that has an appointment, 1 of about 0.026Wt%, 2-butylene oxide ring, the 1,2 epoxy prapane of the Diisopropylamine of about 0.1Wt% and the Nitromethane 99Min. of about 0.2Wt% and 0.1Wt% at least a.Best, this stable composition contains Nitromethane 99Min. and 1,2 epoxy prapane simultaneously, and low-alkoxy phenol is the 4-methoxyphenol.
Therefore, provided by the invention stable 1,1,2-three chloro-1,2, the 2-Halothane, azeotropic of methyl alcohol and anti--1,2-dichloroethene or Azeotrope-like compositions can long storage, and use in industry and do not change when storing, and very little to the corrosion of aluminium.
Low-alkoxy phenol, 1, the 2-butylene oxide ring, Diisopropylamine, Nitromethane 99Min. and 1,2 epoxy prapane and their preparation method all are known.
Composition of the present invention can comprise required every kind of composition amount is in accordance with regulations weighed with any ordinary method preparation, in a suitable containers, various compositions mixed by required amount afterwards.
Embodiment
In a 500ml " Pyiex " flask with the solvent compositions by backflow 150ml in the 90% water saturation solvent (room temperature), use specified stablizer to contain 68Wt%1,1,2-three chloro-1,2, the 2-Halothane, stability tests in seven days of anti--1,2-dichloroethene solvent compositions of 6Wt% methyl alcohol and 26Wt%.Flask is connected to water condenser, and then water condenser is connected to " Drierite "-desiccant tube to keep entering the atmospheric moisture in the flask under certain condition.In addition, stainless steel sample (SS-304) is placed on the separation surface of the solvent vapo(u)r/gas in the condenser and and is placed in the boiling liquid paired stainless steel SS-304 aluminium alloy A1-7075 sample.
After off-test, carry out following test:
1. chlorion (Cl
-) increase of concentration.
With isopyknic distilled water extraction test solvent and analyze chlorine ion concentration.Slide at pocket knife on the metallic surface and carefully to remove corrosives on the sample, do not damage underlying metal.These are scraped junk and are added in each corresponding flask, and flask is to be used for specific test, the sulfuric acid of 100ml5% is added in each flask with the clean bottles wall, and dissolve these corrosion products, analyze the chlorine ion concentration of this solution.The combined chloride ion measurement is represented the chlorion that loses in the organic solvent with the increase of chlorine ion concentration.The loss of whole solvent system composition has been represented in the increase of this chlorine ion concentration, and often is accompanied by the increase of acidity.
2. measuring corrosion rate is that the brushing surface is 1,1 with printing ink solid formulation and rubber friction metallic surface, 2-chloro-1,2, the 2-Halothane, continuous wash in distilled water and the acetone, dry 24 hours and weighing test button in " Drierite " siccative top are accurate to 0.0001g afterwards.The weight loss of test button represents that with mils per year according to this test, aluminium A1-7075 corrosion rate is acceptables less than 4 mils per year.
3. in addition, solvent outward appearance and aluminum alloy specimen are estimated with following standard:
Outward appearance
Grade is checked and accepted liquid A L-7075
0 agrees cleaning, colourless bright, glossy
1 agrees cleaning, and very slight blackening very slightly deposits very much
2 edge cleans, slight blackening is deposition/pit very slightly
3 disagree with at vapor/liquid/glass interface gel and slightly deposit/pit
4 disagree with the medium deposition/pit of medium precipitation
5 disagree with that precipitated and separated deposition peels off
Table 1 has been summarized embodiment, introduces the abbreviation of some various inhibitor that often use in an embodiment below:
1,2-BO-1,2-butylene oxide ring
NM-Nitromethane 99Min.
DIPA-Diisopropylamine
1,2-PO-1,2 epoxy prapane
4-MP-4-methoxyphenol
Table 1
Range estimation
Example inhibitor concentration Cl
-Corrosion rate liquid A l
Wt% PPm mils per year
1 4-MP 0.0026 1 3 0 0
1，2-BO 0.026
NM 0.20
DIPA 0.10
2 4-MP 0.0026 0.8 1 0 0
1，2-BO 0.026
NM 0.80
DIPA 0.40
3 4-MP 0.0026 1 ≤0.1 0 0
1，2-BO 0.026
1，2-PO 0.05
DIPA 0.025
4 4-MP 0.0026 4 0.6 0 0
1，2-BO 0.026
1，2-PO 0.20
DIPA 0.10
Table 1(is continuous)
Range estimation
Example inhibitor concentration Cl
-Corrosion rate liquid A l
Wt% PPm mils per year
5 4-MP 0.0026 3 ≤0.2 0 0
1，2-BO 0.026
NM 0.05
1，2-PO 0.025
DIPA 0.025
6 4-MP 0.0026 2 ＜0.1 0 0
1，2-BO 0.026
NM 0.20
1，2-PO 0.10
DIPA 0.10
7 4-MP 0.0026 1 2 0 0
1，2-BO 0.026
NM 0.20
1，2-PO 0.10
DIPA 0.10
8 4-MP 0.0026 4 0.2 0 0
1，2-BO 0.026
NM 0.80
1，2-PO 0.40
DIPA 0.40
The above embodiments have clearly illustrated the 4-methoxyphenol, 1, and 2-butylene oxide ring and Diisopropylamine are with Nitromethane 99Min. or 1,2-propylene oxide or with the two combination that all has is stablizing 1,1,2-three chloro-1,2,2-Halothane, the importance of methyl alcohol and anti--1,2-dichloroethene azeotropic mixture.
Example 9
With a side of the rosin flux coated circuit board that has activated and above a preheater by circuit card, make the circuit card upper side temperature reach about 200 °F, then by 500 melting solders, simultaneously finish welding applying the rosin circuit card at last.The circuit card of postwelding is containing 1 of 64Wt%, 1,2-three chloro-1,2, the 2-Halothane, 6Wt% methyl alcohol and 25Wt% anti--1, the 2-Ethylene Dichloride, (weight is that weight with azeotropic mixture is benchmark), the 4-methoxyphenol of 0.0026Wt, 1 of 0.026Wt%, the 2-butylene oxide ring, 0.20Wt% Nitromethane 99Min., 1 of 0.1Wt%, remove deflux in the azeotropic mixture of the Diisopropylamine of 2-propylene oxide and 0.1Wt%, it is hung beginning in the boiling groove 2 minutes, in flushed channel 2 minutes then, in the solvent vapo(u)r above the boiling groove 1 minute at last, the circuit card after the cleaning did not have the visible resistates on it.
Claims (14)
1, a kind of stable azeotropic or Azeotrope-like compositions comprise 1 of significant quantity, 1,2-three chloro-1,2, the 2-Halothane, methyl alcohol and 1, a kind of low-alkoxy phenol of 2-Ethylene Dichloride and effective stable quantity, 1, the 2-butylene oxide ring, Diisopropylamine and and a kind of Nitromethane 99Min. and 1,2 epoxy prapane at least a.
2, azeotropic as claimed in claim 1 or Azeotrope-like compositions, wherein effectively stable quantity is the low-alkoxy phenol of about 0.001～0.004Wt%, 1 of about 0.01～1.0Wt%, 1 of the Diisopropylamine of 2-butylene oxide ring and about 0.01～1.0Wt% and the Nitromethane 99Min. of about 0.01～1.0Wt% and about 0.01～1.0Wt%, 2-propylene oxide at least a, said weight percent is according to 1,1,2-three chloro-1,2, the 2-Halothane, jealous the imitating of Qi class of methyl alcohol and 1,2-dichloroethene
3, azeotropic as claimed in claim 2 or Azeotrope-like compositions, wherein significant quantity is 1,1 of about 64～72Wt%, 2-three chloro-1,2,2-Halothane, anti--1,2-dichloroethene of the methyl alcohol of about 5～7Wt% and about 23～29Wt%.
4, azeotropic as claimed in claim 3 or Azeotrope-like compositions wherein contain Nitromethane 99Min. and 1,2 epoxy prapane.
5, stable azeotropic as claimed in claim 4 or Azeotrope-like compositions, wherein low-alkoxy phenol is the 4-methoxyphenol.
6, stable azeotropic as claimed in claim 3 or Azeotrope-like compositions, wherein significant quantity is 1,1 of about 69Wt%, 2-three chloro-1,2,2-Halothane, anti--1,2-dichloroethene of the methyl alcohol of about 6Wt% and about 25Wt%.
7, stable azeotropic as claimed in claim 6 or Azeotrope-like compositions wherein contain Nitromethane 99Min. and 1,2 epoxy prapane.
8, stable azeotropic as claimed in claim 7 or Azeotrope-like compositions, wherein, low-alkoxy phenol is the 4-methoxyphenol.
9, composition as claimed in claim 3, wherein effectively stable quantity is the 4-methoxyphenol of about 0.0026Wt%, 1 of about 0.026Wt%, 2-butylene oxide ring, 1 of the about 0.1Wt% of Nitromethane 99Min. of the Diisopropylamine of about 0.1Wt% and about 0.2Wt%, at least a said weight percent of 2 propylene oxide is according to 1,1,2-three chloro-1,2, the 2-Halothane, the weight of methyl alcohol and anti--1,2-dichloroethene is benchmark.
10, stable azeotropic as claimed in claim 9 or Azeotrope-like compositions wherein contain Nitromethane 99Min. and 1,2 epoxy prapane.
11, composition as claimed in claim 6, wherein effectively stable quantity is the 4-methoxyphenol of about 0.0026Wt%, 1 of about 0.026Wt%, the 2-butylene oxide ring, the Nitromethane 99Min. of about 0.1Wt% Diisopropylamine and about 0.2Wt% and the 1,2 epoxy prapane of about 0.1Wt% at least a, said weight percent is according to 1,1,2-three chloro-1,2, the 2-Halothane, the weight of methyl alcohol and anti--1,2-dichloroethene is benchmark.
12, as the stable azeotropic or the Azeotrope-like compositions of claim 11, wherein contain Nitromethane 99Min. and 1,2 epoxy prapane.
13, a kind of method that cleans solid surface comprises with the said surface of the described compositions-treated of claim 1.
14, method as claimed in claim 13, wherein solid surface is by the printed circuit board (PCB) of solder flux and flux residue contamination.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/151,539 US4803009A (en) | 1988-02-02 | 1988-02-02 | Stabilized azeotrope or azeotrope-like composition of 1,1,2-trichloro-1,2,2-trifluoroethane, methanol and 1,2-dichloroethylene |
| US151,539 | 1988-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1036791A true CN1036791A (en) | 1989-11-01 |
Family
ID=22539219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89101834A Pending CN1036791A (en) | 1988-02-02 | 1989-02-02 | Stable 1,1,2-three chloro-1,2,2-Halothane, methyl alcohol and 1,2-dichloroethene azeotropic or Azeotrope-like compositions |
Country Status (6)
| Country | Link |
|---|---|
| KR (1) | KR890013969A (en) |
| CN (1) | CN1036791A (en) |
| AT (1) | ATE87983T1 (en) |
| AU (1) | AU608194B2 (en) |
| BR (1) | BR8900434A (en) |
| DE (1) | DE68905834D1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114605227A (en) * | 2022-04-12 | 2022-06-10 | 浙江工业大学 | Trans-1,2-dichloroethylene solvent and its use |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4767561A (en) * | 1987-09-23 | 1988-08-30 | E. I. Du Pont De Nemours And Company | Azeotrope or azeotrope-like composition of trichlorotrifluoroethane, methanol and 1,2-dichloroethylene |
| US4810412A (en) * | 1988-04-11 | 1989-03-07 | E. I. Du Pont De Nemours And Company | Azeotropic compositions of 1,1-difluoro-2,2-dichloroethane and methanol or ethanol |
| US4804493A (en) * | 1988-05-24 | 1989-02-14 | E. I. Du Pont De Nemours And Company | Stabilized azeotrope or azeotrope-like composition of 1,1,2-trichloro-1,2,2-trifluoroethane and trans-1,2-dichloroethylene |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0217181A3 (en) * | 1985-10-02 | 1988-08-31 | AlliedSignal Inc. | Azeotrope-like compositions of trichlorotrifluoroethane, methanol, nitromethane , hexane and aceton |
| US4767561A (en) * | 1987-09-23 | 1988-08-30 | E. I. Du Pont De Nemours And Company | Azeotrope or azeotrope-like composition of trichlorotrifluoroethane, methanol and 1,2-dichloroethylene |
| US4804493A (en) * | 1988-05-24 | 1989-02-14 | E. I. Du Pont De Nemours And Company | Stabilized azeotrope or azeotrope-like composition of 1,1,2-trichloro-1,2,2-trifluoroethane and trans-1,2-dichloroethylene |
-
1989
- 1989-01-30 DE DE8989300859T patent/DE68905834D1/en not_active Expired - Lifetime
- 1989-01-30 AT AT89300859T patent/ATE87983T1/en active
- 1989-02-01 BR BR898900434A patent/BR8900434A/en not_active Application Discontinuation
- 1989-02-01 KR KR1019890001239A patent/KR890013969A/en not_active Application Discontinuation
- 1989-02-01 AU AU28964/89A patent/AU608194B2/en not_active Ceased
- 1989-02-02 CN CN89101834A patent/CN1036791A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114605227A (en) * | 2022-04-12 | 2022-06-10 | 浙江工业大学 | Trans-1,2-dichloroethylene solvent and its use |
Also Published As
| Publication number | Publication date |
|---|---|
| BR8900434A (en) | 1989-09-26 |
| AU2896489A (en) | 1989-08-03 |
| ATE87983T1 (en) | 1993-04-15 |
| KR890013969A (en) | 1989-09-26 |
| AU608194B2 (en) | 1991-03-21 |
| DE68905834D1 (en) | 1993-05-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |