JP2000178543A - Azeotropic or azeotrope-like composition - Google Patents
Azeotropic or azeotrope-like compositionInfo
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- JP2000178543A JP2000178543A JP10354767A JP35476798A JP2000178543A JP 2000178543 A JP2000178543 A JP 2000178543A JP 10354767 A JP10354767 A JP 10354767A JP 35476798 A JP35476798 A JP 35476798A JP 2000178543 A JP2000178543 A JP 2000178543A
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- Prior art keywords
- trifluoroiodomethane
- composition
- azeotropic
- weight
- ammonia
- Prior art date
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、共沸乃至共沸様組
成物、及び該組成物を用いた冷媒に関する。[0001] The present invention relates to an azeotropic or azeotropic composition, and a refrigerant using the composition.
【０００２】[0002]
【従来の技術】従来、冷凍機における冷媒、ヒートポン
プにおける熱媒体等としては、クロロフルオロ炭化水
素、フルオロ炭化水素、これらの共沸組成物等が知られ
ている。これらは、一般に、フロンと称されており、現
在、トリクロロモノフルオロメタン（Ｒ−１１）、ジク
ロロジフルオロメタン（Ｒ−１２）、モノクロロジフル
オロエタン（Ｒ−２２）等が主に使用されている。2. Description of the Related Art Conventionally, chlorofluorohydrocarbons, fluorohydrocarbons, azeotropic compositions thereof and the like have been known as refrigerants in refrigerators and heat media in heat pumps. These are generally called chlorofluorocarbons, and at present, trichloromonofluoromethane (R-11), dichlorodifluoromethane (R-12), monochlorodifluoroethane (R-22) and the like are mainly used.
【０００３】しかしながら、近年、大気中に放出された
場合に、ある種のフロンがオゾン層を破壊し、その結
果、人類を含む地球上の生態系に重大な悪影響を及ぼす
ことが指摘されている。従って、オゾン層破壊の危険性
の高いフロンについては、国際的な取り決めにより、使
用および生産が規制されるに至っている。規制の対象に
なっているフロンには、Ｒ−１１とＲ−１２が含まれて
おり、また、Ｒ−２２については、オゾン層破壊へ影響
が比較的小さいと考えられているが、将来的には、より
影響の少ない冷媒の出現が望まれている。しかもＲ−２
２は、Ｒ−１２と比べて蒸気圧が高く、しかも材質への
影響が大きいことなどから、機器の改良又は変更が必要
である。However, in recent years, it has been pointed out that when released into the atmosphere, certain types of chlorofluorocarbons destroy the ozone layer, and consequently have a serious adverse effect on global ecosystems, including humans. . Therefore, the use and production of chlorofluorocarbon, which has a high risk of depletion of the ozone layer, has been regulated by international agreements. Restrictions on CFCs include R-11 and R-12, and R-22 is considered to have a relatively small effect on ozone depletion. It is desired that a refrigerant having less influence be produced. And R-2
In the case of No. 2, since the vapor pressure is higher than that of R-12 and the influence on the material is large, it is necessary to improve or change the equipment.
【０００４】冷凍・空調設備の普及に伴って、需要が毎
年増大しつつあるフロンの使用および生産の規制は、居
住環境をはじめとして、現在の社会機構全般に与える影
響が極めて大きい。従って、オゾン層破壊問題を生じる
危険性のない或いはその危険性の極めて小さい新たな熱
媒体の開発が緊急の課題となっている。[0004] Regulations on the use and production of chlorofluorocarbons, whose demand is increasing every year with the spread of refrigeration and air conditioning equipment, have an extremely large effect on the present social system, including the living environment. Therefore, development of a new heat medium that does not have a risk of causing the ozone layer depletion problem or has a very low risk is an urgent issue.
【０００５】また、最近では、これに加えて、地球温暖
化に関する議論から、できるだけエネルギー効率の高
い、ＧＷＰ（地球温暖化係数）の小さい冷媒が要望され
ている。[0005] Recently, in addition to this, from the discussion on global warming, a refrigerant having as high an energy efficiency as possible and a small GWP (global warming potential) has been demanded.
【０００６】[0006]
【発明が解決しようとする課題】本発明の主な目的は、
オゾン破壊や地球温暖化に及ぼす悪影響が小さいか或い
は全くなく、しかも冷媒特性に優れ、冷媒を含む各種の
用途に有用な混合物を提供することである。SUMMARY OF THE INVENTION The main object of the present invention is to:
It is an object of the present invention to provide a mixture useful for various uses including a refrigerant, having little or no adverse effect on ozone depletion and global warming, and having excellent refrigerant characteristics.
【０００７】[0007]
【課題を解決するための手段】本発明者は、上述した如
き課題に鑑みて鋭意研究を重ねた結果、アンモニア又は
ジフルオロメタンとトリフルオロヨードメタンからなる
混合物は、共沸乃至共沸様組成物を形成し、上記目的に
適合する性質を有するものであることを見出し、ここに
本発明を完成するに至った。The present inventors have made intensive studies in view of the above-mentioned problems, and as a result, have found that ammonia or a mixture of difluoromethane and trifluoroiodomethane is an azeotropic or azeotropic composition. Was formed, and found to have properties suitable for the above purpose, and completed the present invention.
【０００８】即ち、本発明は、下記の共沸乃至共沸様組
成物及び冷媒を提供するものである。That is, the present invention provides the following azeotropic or azeotropic composition and refrigerant.
【０００９】（１）（ｉ）アンモニア又はジフルオロメ
タンと（ii）トリフルオロヨードメタンからなる共沸乃
至共沸様組成物。(1) An azeotropic or azeotrope-like composition comprising (i) ammonia or difluoromethane and (ii) trifluoroiodomethane.
【００１０】（２）（ｉ）アンモニア又はジフルオロメ
タン６０〜９９重量％及び（ii）トリフルオロヨードメ
タン４０〜１重量％からなる共沸乃至共沸様組成物。(2) An azeotropic or azeotrope-like composition comprising (i) 60 to 99% by weight of ammonia or difluoromethane and (ii) 40 to 1% by weight of trifluoroiodomethane.
【００１１】（３）アンモニア６０〜７０重量％及びト
リフルオロヨードメタン４０〜３０重量％からなる共沸
乃至共沸様組成物。(3) An azeotropic or azeotrope-like composition comprising 60 to 70% by weight of ammonia and 40 to 30% by weight of trifluoroiodomethane.
【００１２】（４）ジフルオロメタン６０〜８０重量％
及びトリフルオロヨードメタン４０〜２０重量％からな
る共沸様組成物。(4) 60-80% by weight of difluoromethane
And an azeotropic composition comprising 40 to 20% by weight of trifluoroiodomethane.
【００１３】（５）（ｉ）アンモニア又はジフルオロメ
タンと（ii）トリフルオロヨードメタンの合計量１００
重量部に対して、更に、安定化剤を０．１〜１０重量部
含有する上記項１〜４のいずれかに記載の組成物。(5) The total amount of (i) ammonia or difluoromethane and (ii) trifluoroiodomethane is 100
Item 5. The composition according to any one of Items 1 to 4, further comprising 0.1 to 10 parts by weight of a stabilizer based on part by weight.
【００１４】（６）上記項１〜５のいずれかに記載の組
成物からなる冷媒。(6) A refrigerant comprising the composition described in any one of the above items 1 to 5.
【００１５】[0015]
【発明の実施の形態】本発明の組成物は、（ｉ）アンモ
ニア又はジフルオロメタンと（ii）トリフルオロヨード
メタンからなる共沸乃至共沸様組成物である。この様な
アンモニア又はジフルオロメタンとトリフルオロヨード
メタンからなる混合物が共沸乃至共沸様組成物を形成す
ることは、従来知られていない新たな知見である。DETAILED DESCRIPTION OF THE INVENTION The composition of the present invention is an azeotropic or azeotrope-like composition comprising (i) ammonia or difluoromethane and (ii) trifluoroiodomethane. The fact that such a mixture of ammonia or difluoromethane and trifluoroiodomethane forms an azeotropic or azeotrope-like composition is a new finding not heretofore known.
【００１６】本明細書で使用する共沸乃至共沸様組成物
という用語は、二成分以上の混合物が、一定圧力下にお
いて、通常の蒸留又は蒸発により分離が起こらず、蒸気
相と液相の成分比率が同一であるか、実質的に近い混合
物を意味する。The term azeotropic or azeotrope-like composition, as used herein, refers to a mixture of two or more components that does not separate under a constant pressure by ordinary distillation or evaporation, and that a vapor phase and a liquid phase A mixture in which the component ratios are the same or substantially similar is meant.
【００１７】本発明で用いるアンモニアは、下記の特性
を有する化合物であり、自然界に存在し、オゾン層を破
壊する危険性がなく、しかもＣＯ2を１とした場合の地
球温暖化係数（ＧＷＰ）が０であり、地球温暖化に対す
る悪影響のない物質である。Ammonia used in the present invention is a compound having the following properties, is present in nature, has no risk of destroying the ozone layer, and has a global warming potential (GWP) when CO 2 is set to 1. Is 0 and has no adverse effect on global warming.
【００１８】分子式： ＮＨ3 分子量： １７ 沸点 ： −３３℃ ＧＷＰ： ０ ジフルオロメタンは、下記の特性を有する化合物であ
り、オゾン層に影響を与える塩素原子及び臭素原子を全
く含まないので、オゾン層を破壊する危険性がなく、し
かも地球温暖化係数（ＧＷＰ）が６５０であり、地球温
暖化に対する悪影響が非常に小さい物質である。Molecular formula: NH 3 Molecular weight: 17 Boiling point: −33 ° C. GWP: 0 Difluoromethane is a compound having the following properties and contains no chlorine and bromine atoms which affect the ozone layer. It has no risk of destruction, has a global warming potential (GWP) of 650, and has a very small adverse effect on global warming.
【００１９】分子式： ＣＨ2Ｆ2 分子量： ５２ 沸点： −５１．６℃ ＧＷＰ： ６５０ また、トリフルオロヨードメタンは、下記の特性を有す
る化合物であり、これもオゾン層に影響を与える塩素原
子及び臭素原子を全く含まないので、オゾン層を破壊す
る危険性がない化合物であり、しかも地球温暖化係数
（ＧＷＰ）が５であり、地球温暖化に対する悪影響が非
常に小さい物質である。Molecular formula: CH 2 F 2 Molecular weight: 52 Boiling point: -51.6 ° C. GWP: 650 In addition, trifluoroiodomethane is a compound having the following properties, which also affects chlorine atoms and ozone layers. Since it does not contain any bromine atoms, it is a compound having no risk of destroying the ozone layer, and has a global warming potential (GWP) of 5 and has a very small adverse effect on global warming.
【００２０】分子式： ＣＦ3Ｉ 分子量： １９６ 沸点 ： −２２．５℃ ＧＷＰ： ５ 本発明の共沸乃至共沸様組成物の内で、アンモニアとト
リフルオロヨードメタンからなる混合物の組成は、アン
モニア６０〜９９重量％及びトリフルオロヨードメタン
４０〜１重量％が好ましく、アンモニア６０〜７０重量
％及びトリフルオロヨードメタン４０〜３０重量％がよ
り好ましい。この様な組成範囲の混合物は、７６０ｍｍ
Ｈｇの圧力下で−３３〜−３２℃の沸点を有する。ま
た、アンモニア９０重量％及びトリフルオロヨードメタ
ン１０重量％の場合に、２５℃で共沸組成物となり、
１．０１ＭＰａの蒸気圧を示す。Molecular formula: CF 3 I Molecular weight: 196 Boiling point: -22.5 ° C. GWP: 5 Among the azeotropic or azeotropic-like compositions of the present invention, the composition of the mixture comprising ammonia and trifluoroiodomethane is ammonia. 60-99% by weight and 40-1% by weight of trifluoroiodomethane are preferred, and 60-70% by weight of ammonia and 40-30% by weight of trifluoroiodomethane are more preferred. A mixture having such a composition range is 760 mm
It has a boiling point of -33 to -32 ° C under Hg pressure. In the case of 90% by weight of ammonia and 10% by weight of trifluoroiodomethane, an azeotropic composition is formed at 25 ° C.
Indicates a vapor pressure of 1.01 MPa.
【００２１】本発明の共沸乃至共沸様組成物の内で、ジ
フルオロメタンとトリフルオロヨードメタンからなる混
合物の組成は、ジフルオロメタン６０〜９９重量％及び
トリフルオロヨードメタン４０〜１重量％が好ましく、
ジフルオロメタン６０〜８０重量％及びトリフルオロヨ
ードメタン４０〜２０重量％がより好ましい。この様な
組成範囲の混合物は、７６０ｍｍＨｇの圧力下で４９〜
５０℃の沸点を有する。Among the azeotropic or azeotrope-like compositions of the present invention, the composition of a mixture comprising difluoromethane and trifluoroiodomethane is such that 60 to 99% by weight of difluoromethane and 40 to 1% by weight of trifluoroiodomethane are present. Preferably
More preferred is 60-80% by weight of difluoromethane and 40-20% by weight of trifluoroiodomethane. The mixture having such a composition range has a pressure of 760 mmHg.
It has a boiling point of 50 ° C.
【００２２】本発明の共沸乃共沸様組成物は、高い安定
性を示すが、過酷な使用条件下において、高度の安定性
が要求される場合には、必要に応じて、安定剤を添加す
ることができる。The azeotropic composition of the present invention exhibits high stability. However, if a high degree of stability is required under severe use conditions, a stabilizer may be added, if necessary. Can be added.
【００２３】この様な安定剤としては、ニトロメタン、
ニトロエタン等の脂肪族ニトロ化合物；ニトロベンゼ
ン、ニトロスチレン等の芳香族ニトロ化合物；１，４−
ジオキサン等のエーテル類；１，２−ブチレンオキサイ
ド、エピクロルヒドリン等のエポキシ類；２，６−ジ−
ｔ−ブチル−ｐ−クレゾール、ｏ−，ｍ−，ｐ−クレゾ
ールを含むフェノール類；２，２，３，３，３−ペンタ
フルオロプロピルアミン、ジフェニルアミン等のアミン
類；ブチルヒドロキシキシレン；ベンゾトリアゾール等
が挙げられる。As such a stabilizer, nitromethane,
Aliphatic nitro compounds such as nitroethane; aromatic nitro compounds such as nitrobenzene and nitrostyrene; 1,4-
Ethers such as dioxane; epoxies such as 1,2-butylene oxide and epichlorohydrin; 2,6-di-
Phenols including t-butyl-p-cresol, o-, m-, p-cresol; amines such as 2,2,3,3,3-pentafluoropropylamine and diphenylamine; butylhydroxyxylene; benzotriazole and the like Is mentioned.
【００２４】安定剤の使用量は、安定剤の種類により異
なるが、共沸乃至共沸様の性質に支障のない程度とす
る。通常、安定剤の使用量は、（ｉ）アンモニア又はジ
フルオロメタンと（ii）トリフルオロヨードメタンの混
合物１００重量部に対して、０．１〜１０重量部程度と
することが好ましく、０．１〜５重量部程度とすること
がより好ましい。The amount of the stabilizer used depends on the type of the stabilizer, but is set so as not to affect the azeotropic or azeotropic-like properties. Usually, the amount of the stabilizer used is preferably about 0.1 to 10 parts by weight, based on 100 parts by weight of a mixture of (i) ammonia or difluoromethane and (ii) trifluoroiodomethane, and is preferably about 0.1 to 10 parts by weight. More preferably, it is about 5 parts by weight.
【００２５】本発明の共沸乃至共沸様組成物は、従来の
フロンと同様に冷媒、熱移動媒体、動作流体、発泡剤な
どの各種の用途に用いることができるが、特に、エアコ
ン、冷凍機、冷蔵庫、その他各種低温機器用の冷媒とし
て有用である。The azeotropic or azeotrope-like composition of the present invention can be used for various uses such as a refrigerant, a heat transfer medium, a working fluid, a foaming agent and the like, similarly to conventional fluorocarbons. It is useful as a refrigerant for machines, refrigerators and other various low-temperature equipment.
【００２６】[0026]
【発明の効果】本発明の組成物は、下記の様な優れた特
性を有するものである。The composition of the present invention has the following excellent properties.
【００２７】（１）塩素及び臭素を含まないために、大
気中に放出されてもオゾン層を破壊する危険性がほとん
どない。(1) Since it does not contain chlorine and bromine, there is almost no danger of destroying the ozone layer even if it is released into the atmosphere.
【００２８】（２）地球温暖化係数が小さく、地球温暖
化への悪影響が少ない。(2) The coefficient of global warming is small, and the adverse effect on global warming is small.
【００２９】（３）成績係数（ＣＯＰ）、冷凍能力等の
冷媒性能に優れている。(3) Excellent refrigerant performance such as coefficient of performance (COP) and refrigerating capacity.
【００３０】（４）共沸乃至共沸様組成物なので、使用
中に組成が変化することがなく、安定した性能を発揮で
きる。また、液の管理、回収、再生等が容易である。(4) Since the composition is an azeotropic or azeotropic composition, the composition does not change during use and stable performance can be exhibited. In addition, management, recovery, and regeneration of the liquid are easy.
【００３１】（５）トリフルオロヨードメタンは、消炎
作用を有しており、アンモニア又はジフルオロメタンと
の混合物とした場合に、不燃性乃至難燃性の混合物とな
る。(5) Trifluoroiodomethane has a fire-extinguishing effect, and when it is used as a mixture with ammonia or difluoromethane, it becomes a nonflammable or flame-retardant mixture.
【００３２】[0032]
【実施例】以下、実施例を示して本発明を更に詳細に説
明する。The present invention will be described below in further detail with reference to examples.
【００３３】実施例１ 各種の組成のアンモニアとトリフルオロヨードメタンの
混合物について、２５℃の一定温度で、沸点蒸気圧及び
露点蒸気圧を測定した。結果を下記表１及び図１に示
す。尚、表１中の蒸気圧の差は、沸点蒸気圧に対する沸
点蒸気圧と露点蒸気圧の差の割合として示す。Example 1 The boiling point vapor pressure and the dew point vapor pressure of a mixture of various compositions of ammonia and trifluoroiodomethane were measured at a constant temperature of 25 ° C. The results are shown in Table 1 below and FIG. The difference between the vapor pressures in Table 1 is shown as the ratio of the difference between the boiling point vapor pressure and the dew point vapor pressure with respect to the boiling point vapor pressure.
【００３４】[0034]
【表１】 [Table 1]
【００３５】以上の結果から、トリフルオロヨードメタ
ンの割合が１〜４０重量％の場合に、沸点蒸気圧と露点
蒸気圧の差が５％以内となり、この範囲で共沸乃至共沸
様組成物が形成されていることが判る。From the above results, when the proportion of trifluoroiodomethane is 1 to 40% by weight, the difference between the boiling point vapor pressure and the dew point vapor pressure is within 5%. It can be seen that is formed.
【００３６】また、トリフルオロヨードメタンの割合が
１０重量％の場合に、沸点蒸気圧と露点蒸気圧が同一で
最大蒸気圧となり、共沸組成物が形成されていることが
判る。When the proportion of trifluoroiodomethane is 10% by weight, the vapor pressure at the boiling point and the vapor pressure at the dew point are the same and the maximum vapor pressure is reached, indicating that an azeotropic composition is formed.
【００３７】実施例２ 各種の組成のアンモニアとトリフルオロヨードメタンの
混合物について、蒸発器における熱媒体の蒸発温度を１
０℃、凝縮器における凝縮温度を４０℃、過熱度を０
℃、過冷却度を５℃として、運転を行い、成績係数（Ｃ
ＯＰ）及び冷媒能力を求めた。結果を下記表２及び図２
に示す。Example 2 For a mixture of ammonia and trifluoroiodomethane having various compositions, the evaporation temperature of the heat medium in the evaporator was set to 1
0 ° C, the condensation temperature in the condenser is 40 ° C, and the superheat degree is 0
℃, the degree of supercooling is 5 ℃, operation is performed, the coefficient of performance (C
OP) and refrigerant capacity. The results are shown in Table 2 below and FIG.
Shown in
【００３８】[0038]
【表２】 [Table 2]
【００３９】以上の結果から、トリフルオロヨードメタ
ンの割合が１〜４０重量％の範囲で、冷凍能力と成績係
数の両方の特性が同時に良好となることが判る。特に、
トリフルオロヨードメタンが３０〜４０重量％の場合
に、優れた冷媒特性を発揮できることが判る。From the above results, it can be seen that when the proportion of trifluoroiodomethane is in the range of 1 to 40% by weight, both characteristics of the refrigerating capacity and the coefficient of performance are simultaneously improved. In particular,
It turns out that excellent refrigerant characteristics can be exhibited when trifluoroiodomethane is 30 to 40% by weight.
【００４０】実施例３ 各種の組成のジフルオロメタン（ＨＦＣ３２）とトリフ
ルオロヨードメタンの混合物について、２５℃の一定温
度で、沸点蒸気圧及び露点蒸気圧を測定した。結果を下
記表３及び図３に示す。Example 3 The boiling point vapor pressure and the dew point vapor pressure of a mixture of difluoromethane (HFC32) and trifluoroiodomethane of various compositions were measured at a constant temperature of 25 ° C. The results are shown in Table 3 below and FIG.
【００４１】[0041]
【表３】 [Table 3]
【００４２】以上の結果から、トリフルオロヨードメタ
ンの割合が１〜４０重量％の場合に、沸点蒸気圧と露点
蒸気圧の差が５％以内となり、この範囲で共沸乃至共沸
様組成物が形成されていることが判る。From the above results, when the ratio of trifluoroiodomethane is 1 to 40% by weight, the difference between the boiling point vapor pressure and the dew point vapor pressure is within 5%. It can be seen that is formed.
【００４３】実施例４ 各種の組成のジフルオロメタン（ＨＦＣ３２）とトリフ
ルオロヨードメタンの混合物について、蒸発器における
熱媒体の蒸発温度を１０℃、凝縮器における凝縮温度を
４０℃、過熱度を０℃、過冷却度を５℃として、運転を
行い、成績係数（ＣＯＰ）及び冷媒能力を求めた。結果
を下記表４及び図４に示す。Example 4 For a mixture of difluoromethane (HFC32) and trifluoroiodomethane of various compositions, the evaporation temperature of the heating medium in the evaporator was 10 ° C., the condensation temperature in the condenser was 40 ° C., and the degree of superheat was 0 ° C. The operation was performed with the degree of supercooling set to 5 ° C., and the coefficient of performance (COP) and refrigerant capacity were determined. The results are shown in Table 4 below and FIG.
【００４４】[0044]
【表４】 [Table 4]
【００４５】以上の結果から、共沸様組成であるトリフ
ルオロヨードメタンの割合が１〜４０重量％の範囲で、
冷凍能力と成績係数の両方の特性が良好であることが判
る。From the above results, when the ratio of trifluoroiodomethane having an azeotropic composition is in the range of 1 to 40% by weight,
It turns out that the characteristics of both the refrigerating capacity and the coefficient of performance are good.
【図１】実施例１における本発明組成物の組成と蒸気圧
との関係を示すグラフ。FIG. 1 is a graph showing the relationship between the composition of the composition of the present invention and the vapor pressure in Example 1.
【図２】実施例２における本発明組成物の組成と冷凍能
力及び成績係数との関係を示すグラフ。FIG. 2 is a graph showing the relationship between the composition of the composition of the present invention and the refrigerating capacity and coefficient of performance in Example 2.
【図３】実施例３における本発明組成物の組成と蒸気圧
との関係を示すグラフ。FIG. 3 is a graph showing the relationship between the composition of the composition of the present invention and the vapor pressure in Example 3.
【図４】実施例４における本発明組成物の組成と冷凍能
力及び成績係数との関係を示すグラフ。FIG. 4 is a graph showing the relationship between the composition of the composition of the present invention and the refrigerating capacity and coefficient of performance in Example 4.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 柴沼 俊 大阪府摂津市西一津屋１番１号 ダイキン 工業株式会社淀川製作所内 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shun Shibanuma 1-1, Nishiichitsuya, Settsu-shi, Osaka Daikin Industries, Ltd. Yodogawa Works
Claims (6)
（ii）トリフルオロヨードメタンからなる共沸乃至共沸
様組成物。An azeotropic or azeotrope-like composition comprising (i) ammonia or difluoromethane and (ii) trifluoroiodomethane.
０〜９９重量％及び（ii）トリフルオロヨードメタン４
０〜１重量％からなる共沸乃至共沸様組成物。(I) ammonia or difluoromethane 6
0-99% by weight and (ii) trifluoroiodomethane 4
An azeotropic or azeotropic composition comprising from 0 to 1% by weight.
オロヨードメタン４０〜３０重量％からなる共沸乃至共
沸様組成物。3. An azeotropic or azeotrope-like composition comprising 60 to 70% by weight of ammonia and 40 to 30% by weight of trifluoroiodomethane.
リフルオロヨードメタン４０〜２０重量％からなる共沸
様組成物。4. An azeotrope-like composition comprising 60 to 80% by weight of difluoromethane and 40 to 20% by weight of trifluoroiodomethane.
（ii）トリフルオロヨードメタンの合計量１００重量部
に対して、更に、安定化剤を０．１〜１０重量部含有す
る請求項１〜４のいずれかに記載の組成物。5. The method according to claim 1, further comprising 0.1 to 10 parts by weight of a stabilizer based on 100 parts by weight of the total of (i) ammonia or difluoromethane and (ii) trifluoroiodomethane. The composition according to any one of the above.
らなる冷媒。6. A refrigerant comprising the composition according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10354767A JP2000178543A (en) | 1998-12-14 | 1998-12-14 | Azeotropic or azeotrope-like composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10354767A JP2000178543A (en) | 1998-12-14 | 1998-12-14 | Azeotropic or azeotrope-like composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000178543A true JP2000178543A (en) | 2000-06-27 |
Family
ID=18439778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10354767A Pending JP2000178543A (en) | 1998-12-14 | 1998-12-14 | Azeotropic or azeotrope-like composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000178543A (en) |
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