JPH0327331A - Fluorinated hydrocarbon based azeotropic and pseudo-azeotropic composition - Google Patents
Fluorinated hydrocarbon based azeotropic and pseudo-azeotropic compositionInfo
- Publication number
- JPH0327331A JPH0327331A JP1159464A JP15946489A JPH0327331A JP H0327331 A JPH0327331 A JP H0327331A JP 1159464 A JP1159464 A JP 1159464A JP 15946489 A JP15946489 A JP 15946489A JP H0327331 A JPH0327331 A JP H0327331A
- Authority
- JP
- Japan
- Prior art keywords
- composition
- azeotropic
- fluorocarbon
- fluorinated hydrocarbon
- difluoroethane
- 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.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 32
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 10
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 9
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 8
- FQAMAOOEZDRHHB-UHFFFAOYSA-N 1,2,2-trichloro-1,1-difluoroethane Chemical compound FC(F)(Cl)C(Cl)Cl FQAMAOOEZDRHHB-UHFFFAOYSA-N 0.000 claims abstract description 11
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002904 solvent Substances 0.000 abstract description 9
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 239000012459 cleaning agent Substances 0.000 abstract description 2
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000011086 high cleaning Methods 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 5
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 5
- 230000004907 flux Effects 0.000 description 5
- AJDIZQLSFPQPEY-UHFFFAOYSA-N 1,1,2-Trichlorotrifluoroethane Chemical compound FC(F)(Cl)C(F)(Cl)Cl AJDIZQLSFPQPEY-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- -1 hebutane Chemical compound 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 3
- 239000010721 machine oil Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 2
- HNRMPXKDFBEGFZ-UHFFFAOYSA-N 2,2-dimethylbutane Chemical compound CCC(C)(C)C HNRMPXKDFBEGFZ-UHFFFAOYSA-N 0.000 description 2
- KDSNLYIMUZNERS-UHFFFAOYSA-N 2-methylpropanamine Chemical compound CC(C)CN KDSNLYIMUZNERS-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 2
- LGXVIGDEPROXKC-UHFFFAOYSA-N 1,1-dichloroethene Chemical group ClC(Cl)=C LGXVIGDEPROXKC-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- JSZOAYXJRCEYSX-UHFFFAOYSA-N 1-nitropropane Chemical compound CCC[N+]([O-])=O JSZOAYXJRCEYSX-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical compound CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000004971 nitroalkyl group Chemical group 0.000 description 1
- MCSAJNNLRCFZED-UHFFFAOYSA-N nitroethane Chemical compound CC[N+]([O-])=O MCSAJNNLRCFZED-UHFFFAOYSA-N 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000013020 steam cleaning Methods 0.000 description 1
- 239000005437 stratosphere Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
- 239000005436 troposphere Substances 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
Landscapes
- Nozzles (AREA)
- Detergent Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
【産業上の利用分野］
本発明は、代替フロンとして使用できるとともに溶剤等
として優れた特性を有する新規な弗素化炭化水素系共沸
及び擬共沸組戒物に関するものである．
［従来の技術］
弗素化炭化水素系化合物（以下単にフロンという）は、
毒性が少なく化学的に安定なものが多く、標準沸点の異
なる各種フロンが入手できることから、これらの特性を
活かして溶剤、発泡剤、プロペラントあるいは冷媒等と
して１，１．２−トリクロロ−１．２．２− トリフル
オロエタン（ Ｒ １１３ ）が、発泡剤としてトリク
ロロモノフルオロメタン（Ｒｌｌ）が、プロベラントや
冷媒としてジクロロジフルオロメタン（ Ｒ １２ ）
が使われている．
［発明が解決しようとする課題］
化学的に特に安定なＲ １１， Ｒ １２、Ｒ １１３
は対流圏内での寿命が長く、拡散して成層圏に達し、こ
こで太陽光線により分解して発生する塩素ラジカルがオ
ゾンと連鎖反応を起こし、オゾン層を破壊するとのこと
から、これら従来のフロンの使用規制が実施されること
となった．このため、これらの従来のフロンに代わり、
オゾン層を破壊しにくい代替フロンの探索が活発に行な
われている．
本発明は、従来のフロンの使用量を低減し、且つ該フロ
ンが有している優れた特性を満足しながら代替フロンと
して使用できる新規なフロン組成物を提供することを目
的とするものである．
【課題を解決するための手段】
本発明は、１，１．２−トリクロロ−２，２−ジフルオ
ロエタン（Ｒ１２２，沸点７１．９℃），及び１，１．
１− ｝リクロロエタン（沸点７４℃）とからなる弗素
化炭化水素系共沸及び擬共沸組成物に関するものである
．本発明の組成物は共沸組成が存在し、特に洗浄溶剤と
して従来のＲ１１３単体より洗浄力が高いため、Ｒ １
１３代替として極めて有用なものである．
更に、リサイクルしても組成の変動が少ないこと，又、
従来の単一フロンと同じ使い方ができ、従来技術の大幅
な変更を要しないこと等の利点がある．
本発明の組成物の混合比はＲ １２２が４０〜８０重量
％，及び１，１．１− ｝リクロロエタンが２０〜６０
重量％であり、好ましくはＲ １２２が５６．９重量％
． 及ヒ１，１．１− ｝リクロロエタンが４３．１重
量％である共沸組成である．
本発明の組成物には、用途に応じてその他の成分を更に
添加混合することができる．例えば、溶剤としての用途
においては、ベンタン，イソペンタン，ヘキサン，イソ
ヘキサン，ネオヘキサン，ヘブタン，イソへブタン，２
．３−ジメチルブタン，シクロベンタン等の炭化水素類
、ニトロメタン，ニトロエタン，ニトロプロパン等のニ
トロアルカン類、ジエチルアミン，トリエチルアミン，
イソブロビルア与冫，プチルアミン，イソブチルアミン
等のアミン類、メタノール，エタノール，ｎ−プロビル
アルコール，ｌ−プロビルアルコール，ｎ−ブチルアル
コール，１−ブチルアルコール，Ｓ−ブチルアルコール
．ｔ−ブチルアルコール等のアルコール類、メチルセロ
ソルブ，テトラヒドロフラン．１，４−ジオキサン等の
エーテル類、アセトン，メチルエチルケトン，メチルブ
チルケトン等のケトン類、酢酸エチル，酢酸プロビル，
酢酸ブチル等のエステル類、ジクロロメタン，ｔｒａｎ
ｓ−１． ２−ジクロロエチレン， ｃＬｓ−１．２−
ジクロロエチレン，２−ブロモブロバン等のハロゲン化
炭化水素類、その他、１．１−ジクロロ−２． ２．
２−トリフルオロエタン（ Ｒ １２３ ）等の本発明
以外のフロン類等を適宜添加することができる．
本発明の弗素化炭化水素系共沸及び擬共沸組成物は、従
来のフロンと同様、熱媒体や発泡剤等の各種用途に使用
でき、特に溶剤として用いた場合、従来のＲ １１３よ
り高い溶解力を有するため好適である。
溶剤の具体的な用途としては、フラックス，グリース，
油，ワックス，インキ等の除去剤，塗料用溶剤，抽出剤
、ガラス，セラミックス，プラスチック，ゴム，金属製
各種物品，特にＩＣ部品，電気機器，精密機械，光学レ
ンズ等の洗浄剤や水切り剤等を挙げることができる。
洗浄方法としては、手拭き，浸漬，スプレー揺動，超音
波洗浄，蒸気洗浄等を採用すればよい．[Field of Industrial Application] The present invention relates to a novel fluorinated hydrocarbon azeotrope and near-azeotrope compound that can be used as a CFC substitute and has excellent properties as a solvent. [Prior art] Fluorinated hydrocarbon compounds (hereinafter simply referred to as fluorocarbons) are
Many of them are less toxic and chemically stable, and various types of fluorocarbons with different standard boiling points are available.Using these properties, 1,1,2-trichloro-1. 2.2- Trifluoroethane (R 113 ), trichloromonofluoromethane (Rll) as blowing agent, dichlorodifluoromethane (R 12 ) as proverant or refrigerant
is used. [Problem to be solved by the invention] Chemically particularly stable R 11, R 12, R 113
These conventional CFCs have a long lifespan in the troposphere and diffuse into the stratosphere, where they are decomposed by sunlight and generated chlorine radicals that cause a chain reaction with ozone and destroy the ozone layer. Usage regulations have been implemented. Therefore, instead of these conventional CFCs,
The search for alternative CFCs that are less likely to deplete the ozone layer is being actively conducted. An object of the present invention is to provide a new fluorocarbon composition that can be used as a fluorocarbon substitute while reducing the amount of conventional fluorocarbons used and satisfying the excellent properties of the fluorocarbons. ．． Means for Solving the Problems The present invention provides 1,1,2-trichloro-2,2-difluoroethane (R122, boiling point 71.9°C), and 1,1.2-trichloro-2,2-difluoroethane (R122, boiling point 71.9°C).
1-} This relates to fluorinated hydrocarbon azeotropic and pseudoazeotropic compositions consisting of dichloroethane (boiling point 74°C). The composition of the present invention has an azeotropic composition and has higher cleaning power than conventional R113 alone as a cleaning solvent, so R 1
It is extremely useful as a substitute for 13. Furthermore, there is little change in composition even after recycling, and
It can be used in the same way as conventional single fluorocarbons, and has the advantage of not requiring major changes to conventional technology. The mixing ratio of the composition of the present invention is 40 to 80% by weight of R 122 and 20 to 60% by weight of 1,1.1-}lichloroethane.
% by weight, preferably R 122 is 56.9% by weight
．． 1,1.1- }It has an azeotropic composition of 43.1% by weight of dichloroethane. Other components may be further added to the composition of the present invention depending on the intended use. For example, when used as a solvent, bentane, isopentane, hexane, isohexane, neohexane, hebutane, isohexane,
．． Hydrocarbons such as 3-dimethylbutane and cyclobentane, nitroalkanes such as nitromethane, nitroethane and nitropropane, diethylamine, triethylamine,
Amines such as isobrovir alcohol, butylamine, isobutylamine, methanol, ethanol, n-propyl alcohol, l-propyl alcohol, n-butyl alcohol, 1-butyl alcohol, S-butyl alcohol. Alcohols such as t-butyl alcohol, methyl cellosolve, tetrahydrofuran. Ethers such as 1,4-dioxane, ketones such as acetone, methyl ethyl ketone, methyl butyl ketone, ethyl acetate, proyl acetate,
Esters such as butyl acetate, dichloromethane, tran
s-1. 2-dichloroethylene, cLs-1.2-
Halogenated hydrocarbons such as dichloroethylene, 2-bromobroban, etc., 1,1-dichloro-2. 2.
Fluorocarbons other than those of the present invention, such as 2-trifluoroethane (R 123 ), can be added as appropriate. The fluorinated hydrocarbon azeotropic and near-azeotropic compositions of the present invention can be used in various applications such as heat carriers and blowing agents, similar to conventional fluorocarbons, and especially when used as a solvent, have a higher R than conventional 113. It is suitable because it has a dissolving power. Specific uses of solvents include flux, grease,
Removal agents for oil, wax, ink, etc., paint solvents, extractants, cleaning agents and draining agents for glass, ceramics, plastics, rubber, various metal products, especially IC parts, electrical equipment, precision machinery, optical lenses, etc. can be mentioned. As cleaning methods, hand wiping, dipping, spray shaking, ultrasonic cleaning, steam cleaning, etc. may be used.
以下に本発明の実施例を示す．
実施例１
下記の組成からなる溶剤混合物１０００ ｇを蒸留フラ
スコに入れ、理論段数２０段の精留塔を用い大気圧下で
蒸留を行なった．
（組成） （重量％）Ｒ １２２
Ｇ５１，１．１−トリクロロ
エタン ３５その結果、留出温度６５℃にて
２００ｇの留分を得た．このもの．をガスクロマトグラ
フで測定した結果、次の組成であった。
（組成） （重量％）Ｒ １２２
５６．９１， ｌ， １− ト
リクロロエタン ４３．１実施例２
本発明の組或物を用いてフラックスの洗浄試験を行なっ
た。プリント基板全面にフラックス（タムラＡＬ−４，
タムラ製作所製）を塗布し、２００℃の電気炉で２分間
焼成後、本発明の組成物に５分間浸漬した．比較例とし
てＲ １１３についても同様の試験を行なった．
本発明の組或物の混合比及びフラックスの除去の度合い
を第１表に示す．
第１表
０：良好に除去できる ○：ほぼ良好Δ：微量残存
×：かなり残存実施例３
本発明の組成物を用いて機械油の洗浄試験を行なった．
ＳＯＳ−３０４のテストビース（２５ｎ＋ｍＸ ３０ｍ
ｍＸ ２ｍｍ厚）を機械油（ＣＱ−３０，日本石油■製
）中に浸漬した後、本発明の組或物中に５分間浸漬した
．比較例としてＲ １１３についても同様の試験を行な
った．
本発明の組成物の混合比及び機械油の除去の度合いを第
２表に示す。
第２表
０：良好に除去できる ○：ほぼ良好Δ：微量残存
×：かなり残存Examples of the present invention are shown below. Example 1 1000 g of a solvent mixture having the following composition was placed in a distillation flask and distilled under atmospheric pressure using a rectification column with 20 theoretical plates. (Composition) (wt%) R 122
G51,1.1-Trichloroethane 35 As a result, 200 g of fraction was obtained at a distillation temperature of 65°C. This thing. As a result of measurement using a gas chromatograph, the composition was as follows. (Composition) (wt%) R 122
56.91, 1, 1-Trichloroethane 43.1 Example 2 A flux cleaning test was conducted using the composition of the present invention. Flux (Tamura AL-4,
(manufactured by Tamura Seisakusho) was applied, baked for 2 minutes in an electric furnace at 200°C, and then immersed in the composition of the present invention for 5 minutes. As a comparative example, a similar test was conducted on R113. Table 1 shows the mixing ratio of the composition of the present invention and the degree of flux removal. Table 1 0: Can be removed well ○: Almost good Δ: Trace amount remaining
×: Significant residual Example 3 A machine oil cleaning test was conducted using the composition of the present invention. SOS-304 test bead (25n+mX 30m
2 mm thick) was immersed in machine oil (CQ-30, manufactured by Nippon Oil Corporation) and then immersed in the composition of the present invention for 5 minutes. As a comparative example, a similar test was conducted on R113. The mixing ratio of the composition of the present invention and the degree of removal of machine oil are shown in Table 2. Table 2 0: Can be removed well ○: Almost good Δ: Trace amount remaining
×: Significantly remaining
本発明の弗素化炭化水素系共沸及び擬共沸組成物は、従
来のフロンが有して−いる優れた特性を満足しながら、
代替フロンとして使用できるとともに、従来のフロンと
同様の使い方ができるため、従来技術の大幅な変更を要
しない等の利点がある．又、溶剤としてよく使われてい
るＲ １１３よりもフラックスや油等の溶解除去性に優
れるためＲ １１３に代わる洗浄溶剤として最適である
。The fluorinated hydrocarbon azeotropic and near-azeotropic compositions of the present invention satisfy the excellent properties of conventional fluorocarbons, while
It can be used as a CFC substitute and can be used in the same way as conventional CFCs, so it has the advantage of not requiring major changes to conventional technology. In addition, it has better ability to dissolve and remove flux, oil, etc. than R 113, which is often used as a solvent, so it is most suitable as a cleaning solvent in place of R 113.
Claims (4)
タンと１，１，１−トリクロロエタンからなる弗素化炭
化水素系共沸組成物。(1) A fluorinated hydrocarbon azeotropic composition consisting of 1,1,2-trichloro-2,2-difluoroethane and 1,1,1-trichloroethane.
タン５６．９重量％、及び１，１，１−トリクロロエタ
ン４３．１重量％からなる請求項１に記載の組成物。(2) The composition according to claim 1, comprising 56.9% by weight of 1,1,2-trichloro-2,2-difluoroethane and 43.1% by weight of 1,1,1-trichloroethane.
タンと１，１，１−トリクロロエタンからなる弗素化炭
化水素系擬共沸組成物。(3) A fluorinated hydrocarbon-based pseudoazeotropic composition consisting of 1,1,2-trichloro-2,2-difluoroethane and 1,1,1-trichloroethane.
タン４０〜８０重量％、及び１，１，１−トリクロロエ
タン２０〜６０重量％からなる請求項３に記載の組成物
。(4) The composition according to claim 3, comprising 40 to 80% by weight of 1,1,2-trichloro-2,2-difluoroethane and 20 to 60% by weight of 1,1,1-trichloroethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1159464A JPH0327331A (en) | 1989-06-23 | 1989-06-23 | Fluorinated hydrocarbon based azeotropic and pseudo-azeotropic composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1159464A JPH0327331A (en) | 1989-06-23 | 1989-06-23 | Fluorinated hydrocarbon based azeotropic and pseudo-azeotropic composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0327331A true JPH0327331A (en) | 1991-02-05 |
Family
ID=15694337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1159464A Pending JPH0327331A (en) | 1989-06-23 | 1989-06-23 | Fluorinated hydrocarbon based azeotropic and pseudo-azeotropic composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0327331A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5356335A (en) * | 1991-07-05 | 1994-10-18 | Taikisha, Ltd. | Pressure gradient control system |
-
1989
- 1989-06-23 JP JP1159464A patent/JPH0327331A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5356335A (en) * | 1991-07-05 | 1994-10-18 | Taikisha, Ltd. | Pressure gradient control system |
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