Ep2431441a2 composition of 2,3,3,3tetrafluoropropene. The novel refrigerant 2,3,3,3tetrafluoropropene hfo 1234yf is discussed as a replacement for 1,1,1, 2 tetrafluoroethane r4a due to its low global warming potential. Hfo1234ze manufacture through the reaction of 3,3,3trifluoropropyne cf 3c. Measurements of density and vapor pressure and a comprehensive equation of state mark o. A novel equation of state for 2,3,3,3tetrafluoropropene hfo1234yf has been proposed to calculate saturation properties, including vapor pressure, saturated liquid and vapor densities, and latent heat. Although it may therefore have great potential for use on a large scale, no structural data and only a fewvibrational data of the compound are known. The present invention relates to a copolymer of 2,3,3,3tetrafluoropropene and a nonfluorinated ethylenic hydrocarbon monomer. The use of r4a is being phased out because of its high globalwarming potential. Biotransformation of trans1,1,1,3tetrafluoropropene, 2,3,3. Use of the information, documents and data from the echa website is subject to the terms and conditions of this legal notice, and subject to other binding limitations provided for under applicable law, the information, documents and data made available on the echa website may be reproduced, distributed andor used, totally or in part, for noncommercial purposes provided that echa is. For more information please see our release notes 2. Structure and properties of 2,3,3,3tetrafluoropropene hfo. Apollo scientific currently provides pricing in several currencies. It has been proposed as a replacement for r4a as a refrigerant in automobile air conditioners.
Thermodynamic properties of trans1,3,3,3tetrafluoropropene. It was developed as a fourth generation refrigerant to replace fluids as r4a and as a blowing agent for foam and aerosol applications. Synthesis of 2,3,3,3tetrafluoropropene by catalytic. Jan 22, 2016 the gases used as gaseous dielectrics have been trans1, 3, 3, 3 tetrafluoropropene hfo1234zee, 2, 3, 3, 3 tetrafluoropropene hfo1234yf, perfluoro 3 methylbutanone 2 cf 3 cocfcf 3 2, and sulfur hexafluoride sf 6. The hydrofluoroolefin 2,3,3,3tetrafluoropropene hfo1234yf has been introduced to replace 1,1,1,2tetrafluoroethane hfc4a as refrigerant in mobile, including vehicle, air conditioning systems because of its lower global warming potential. This information is stored within a cookie and setting this assumes acceptance. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple faq for additional information. Final rule to exclude 2,3,3,3tetrafluoropropene from control as a volatile organic compound voc action on september 19, 20 the environmental protection agency epa issued a final rule that identified 2,3,3,3tetrafluoropropene also known as hfo1234yf as a chemical. The novel refrigerant 2,3,3,3tetrafluoropropene hfo 1234yf is discussed as a replacement for 1,1,1,2tetrafluoroethane r4a due to its low global warming potential. Stable 2,3,3,3tetrafluoropropene composition arkema. May 02, 20 the invention relates to a stable composition cs comprising at least x wt. The environmental protection agency has issued a final rule that identified 2,3,3,3tetrafluoropropene also known as hfo1234yf as a chemical compound that will.
Us8071826b2 process for the preparation of 2,3,3,3. Structure, properties, spectra, suppliers and links for. Stable 2,3,3,3tetrafluoropropene composition arkema france. Synthesis of 2,3,3,3tetrafluoropropene hfo1234yf on. Based on a vapor pressure of 4,393 mm hg at 25 c, 3,3,3trifluoro1propene is expected to exist solely in the vaporphase in the ambient atmosphere. The present application relates to a composition comprising a lubricant based on polyol esters poe or pve and a refrigerant f comprising from 1 to 99% by weight of 2, 3, 3, 3 tetrafluoropropene hfo1234yf and from 1 to 99% by weight of trans1, 3, 3, 3 tetrafluoropropene trans hfo1234ze. The independent variables of the equations of state are the temperature and density. Thermodynamic properties of 1,1,1,2tetrafluoroethane r4a.
The measurements extend from lowdensity vapor to compressedliquid states. Conventionally, 2,3,3,3tetrafluoropropene hfo1234yf is considered as a relatively stable compound and is used as a compound for refrigerants or electrothermal fluids. Process for producing 2,3,3,3tetrafluoropropene honeywell. Honeywell dupont joint collaboration material safety data sheet. Other symptoms potentially related to misuse or inhalation abuse are. It is also designated r1234yf as the first of a new class of refrigerants. New fundamental equations of state explicit in the helmholtz energy with a common functional form are presented for 2, 3, 3, 3 tetrafluoropropene r1234yf and trans1, 3, 3, 3 tetrafluoropropene r1234zee. Apollo scientific home products 2,3,3,3tetrafluoropropene 97%. The invention relates to a stable composition cs comprising at least x wt. A process for making a 2,3,3,3tetrafluoropropene product having greater than 99. Vapor pressures were measured in the densimeter from 261 k to 380 k. Environmental fate of the next generation refrigerant 2,3,3,3.
Apollo scientific home products 2, 3, 3, 3 tetrafluoropropene 97%. Downloads are provided zipwarexe along with docs htmlpdf and. A process for the preparation of 2,3,3,3tetrafluoropropene hfo1234yf. In the present study, recent research is considered about new generation refrigerant r1234yf and r1234ze e. The copolymer contains a a 2,3,3,3tetrafluoropropene unit and b a nonfluorinated ethylenic hydrocarbon monomer unit.
Chlorofluorocarbons cfcs had been phased out under the montreal protocol, cfc alternative refrigerants are searching for based on the condition. We describe lowtemperature xray structure analysis, vibrational spectra and combustion properties of 2,3,3,3tetrafluoropropene. Mobile air conditioners and beverage coolers designed for this novel refrigerant are now available. T behavior of 2,3,3,3tetrafluoroprop1ene r1234yf was measured from t 232 to 400 k with pressures up to 10 mpa using a twosinker densimeter. I have just modified 2 external links on 2,3,3,3tetrafluoropropene. A novel equation of state for 2, 3, 3, 3 tetrafluoropropene hfo1234yf has been proposed to calculate saturation properties, including vapor pressure, saturated liquid and vapor densities, and latent heat. It is also designated r1234yf as the first of a new class of. Articles of 1chloro 2, 3, 3, 3 tetrafluoropropene are included as well. Measurement and correlation of the thermal conductivity of 2. Hfo1234yf is a refrigerant with low global warming potential. Journalof fluorine chemistry 82 1997 171174 preparation of 2,3,3,3tetrafluoropropene from trifluoroacetylacetone and sulphur tetrafluoride r. Abstract new experimental data on the thermal conductivity of 2,3,3,3tetrafluoroprop1ene r1234yf and trans1,3,3,3tetrafluoropropene r1234ze are reported that allow the development of widerange correlations. The process proceeds under heating in gasphase in the presence of a catalyst containing.
Us2996555a preparation of 2, 3, 3, 3tetrafluoropropene. The present invention provides a novel copolymer of 2,3,3,3tetrafluoropropene and a nonfluorinated ethylenic hydrocarbon monomer. Thermodynamic properties of hfo1234yf 2,3,3,3tetrafluoropropene. October 22, 20 the environmental protection agency has issued a final rule that identified 2,3,3,3tetrafluoropropene also known as hfo1234yf as a.
Due to lethality observed after high concentration inhalation exposures of hfo1234yf in a developmental toxicity study with rabbits, the biotransformation of hfo1234yf was investigated. If you are working closely with our development team on the userlist or commercial support you may be asked to test a nightly build using one of the links below. The product composition of gas degradation before and after 5h aging in the barrier discharge has been determined by gas. This colorless gas has been proposed as a replacement for r4a as a refrigerant in automobile air conditioners. Feasibility of using 2,3,3,3tetrafluoropropene r1234yf as a solvent for solidliquid extraction of biopharmaceuticals. I have just modified 2 external links on 2, 3, 3, 3 tetrafluoropropene. May 01, 2010 2, 3, 3, 3 tetrafluoropropene hfo1234yf is a nonozonedepleting fluorocarbon replacement with a low global warming potential and is developed as refrigerant. Final rule to exclude 2, 3, 3, 3 tetrafluoropropene from control as a volatile organic compound voc action on september 19, 20 the environmental protection agency epa issued a final rule that identified 2, 3, 3, 3 tetrafluoropropene also known as hfo1234yf as a chemical. Mar 10, 2015 a process for making a 2, 3, 3, 3 tetrafluoropropene product having greater than 99. Surface tensions of trans 1,3,3,3tetrafluoropropene and. Feasibility of using 2,3,3,3tetrafluoropropene r1234yf as. Nov 06, 20 hfo1225ye is further hydrogenated to 1,1,1, 2, 3 pentafluoropropane hfc245eb then dehydrofluorinated to the final refrigerant product 2, 3, 3, 3 tetrafluoropropene hfo1234yf. References hfo1234yf a low gwp refrigerant for mac.
A process for the preparation of 2, 3, 3, 3 tetrafluoropropene hfo1234yf. In this study, we described the catalytic dehydrofluorination of hfc236ea to hfo1225ye, which must be similar to the dehydrofluorination of hfc245eb to hfo1234yf. Lemmon1 1thermophysical properties division, national institute of standards and technology 325 broadway, boulder, co 803053337 usa. Identification of the substancepreparation and of the companyundertaking product information trade name. New fundamental equations of state explicit in the helmholtz energy with a common functional form are presented for 2,3,3,3tetrafluoropropene r1234yf and trans1,3,3,3tetrafluoropropene r1234zee. Thermodynamic properties of trans1,3,3,3tetrafluoropropene r1234zee. Abstract new experimental data on the thermal conductivity of 2,3,3,3tetrafluoroprop1ene r1234yf and trans1,3,3,3tetrafluoropropene r1234ze are reported that allow the. The present application relates to a composition comprising a lubricant based on polyol esters poe or pve and a refrigerant f comprising from 1 to 99% by weight of 2,3,3,3tetrafluoropropene hfo1234yf and from 1 to 99% by weight of trans1,3,3,3tetrafluoropropene trans hfo1234ze. Nov 18, 2014 the hydrofluoroolefin 2, 3, 3, 3 tetrafluoropropene hfo1234yf has been introduced to replace 1,1,1, 2 tetrafluoroethane hfc4a as refrigerant in mobile, including vehicle, air conditioning systems because of its lower global warming potential. Material safety data sheet dupont opteon yf version 2. Structure and properties of 2,3,3,3tetrafluoropropene. It also relates to the use of said composition in refrigeration, air conditioning and heat pump. A process comprises a reacting chlorotrifluoroethylene with a methyl halide to form an intermediate product stream. Files are available under licenses specified on their description page.
Revision to the regulatory definition of volatile organic. Hfo1225ye is further hydrogenated to 1,1,1,2,3pentafluoropropane hfc245eb then dehydrofluorinated to the final refrigerant product 2,3,3,3tetrafluoropropene hfo1234yf. The nistequation of state eos for r1234zee is expressed in terms of the helmholtz energy as a function of temperature and density, and it is valid over the entire fluid surface. Thermodynamic properties of 2,3,3,3tetrafluoroprop1ene. No action shall be taken involving any personal risk or without suitable training. Journalof fluorine chemistry 82 1997 171174 preparation of 2, 3, 3, 3 tetrafluoropropene from trifluoroacetylacetone and sulphur tetrafluoride r. The gases used as gaseous dielectrics have been trans1,3,3,3tetrafluoropropene hfo1234zee, 2,3,3,3tetrafluoropropene hfo1234yf, perfluoro3methylbutanone2 cf 3 cocfcf 3 2, and sulfur hexafluoride sf 6. Hfo1234yf 2,3,3,3tetrafluoropropene is a promising alternative to hfc4a for the airconditioning system of an automobile car. The measurements extend from lowdensity vapor to compressedliquid states, and include the extended critical region. This colorless gas has been proposed as a replacement for r4a as. A practical equation of state for 2,3,3,3tetrafluoropropene. Recently, this refrigerant has been considered as a viable replacement for r4a 1,1,1, 2 tetrafluoroethane, due to its low global warming. Recently, this refrigerant has been considered as a viable replacement for r4a 1,1,1,2tetrafluoroethane, due to its low global warming. Please select the one that is most appropriate for your business.
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