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2,3,3,3-Tetrafluoropropene, HFO-1234yf, is a hydrofluoroolefin (HFO) with molecular formula CH 2 =CFCF 3. Its primary application is as a refrigerant with low global warming potential (GWP). [1] [2] As a refrigerant, it is designated R-1234yf [1] and marketed under the names Opteon YF by Chemours and as Solstice YF by Honeywell. [3]
In the crystal, it aggregates via C-H---F contacts from 2.44(1) to 2.63(1) Å. [10] Combustion experiments with trans-1,3,3,3-tetrafluoropropene produce carbon dioxide, carbonyl fluoride and hydrogen fluoride as the main combustion products. The determination of the flammability range leads to the classification of trans-1,3,3,3 ...
To match a print, a fingerprint technician scans in the print in question, and computer algorithms are utilized to mark all minutia points, cores, and deltas detected on the print. In some systems, the technician is allowed to perform a review of the points that the software has detected, and submits the feature set to a one-to-many (1:N) search.
cis-1,3,3,3-Tetrafluoropropene (HFO-1234ze(Z), R-1234ze(Z)) is a hydrofluoroolefin which has been considered for use as a refrigerant in high-temperature heat pumps. [ 1 ] [ 2 ] References
Tetrafluoropropene, also called tetrafluoropropylene, has the following isomers: 1,1,2,3-tetrafluoropropene (HFO-1234yc) 1,1,3,3-tetrafluoropropene (HFO-1234zc)
Entering a password to sign in to your AOL account can sometimes feel like a hassle, especially if you forget it. If your smart device is enabled with biometric authenticators like a fingerprint sensor or facial recognition technology, you can sign in with ease. Enable biometric sign in
Biometric spoofing is a method of fooling [7] a biometric identification management system, where a counterfeit mold is presented in front of the biometric scanner. This counterfeit mold emulates the unique biometric attributes of an individual so as to confuse the system between the artifact and the real biological target and gain access to ...
2,3,3,3-tetrafluoropropene (HFO-1234yf, trademarked as Opteon YF) and 1,3,3,3-tetrafluoropropene (HFO-1234ze). [7] cis-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz-Z; DR-2) shows also a promise in high temperature applications like cogeneration, heat recovery and medium temperature heat pumps. trans-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz ...