摘要:
A composition comprising 1,3,3,3-tetrafluoropropene (HFO-1234ze) and one or more compounds selected from the group consisting of 1,1,1,2-Tetrafluoroethane (HFC-134a), Difluoroethane (HFC-152a), water, 1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea), 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1,1,1,3,3-pentafluorobutane (HFC-365mfc), water and CO 2 .
摘要:
The use of pentafluoropropene (HFO-1225) and tetrafluoropropene (HFO-1234) in refrigeration equipment is disclosed. These materials are generally useful as refrigerants for heating and cooling, as blowing agents, as aerosol propellants, as solvent composition, and as fire extinguishing and suppressing agents.
摘要:
Various uses of fluorinated alkenes, particularly HFO-1234 and HFCO-1233zd in a variety of applications, including refrigeration, foams, blowing agents, aerosols, propellants, solvent compositions, fire extinguishing and suppressing agents, extraction agents, and catalyst deposition are disclosed.
摘要:
A composition comprising 1,3,3,3-tetrafluoropropene (HFO-1234ze) and one or more compounds selected from the group consisting of 1,1,1,2-Tetrafluoroethane (HFC-134a), Difluoroethane (HFC-152a), water, 1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea), 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1,1,1,3,3-pentafluorobutane (HFC-365mfc), water and CO 2 .
摘要:
Disclosed are azeotrope-like compositions comprising HFC-134a and at least one of HFC-245fa, HFC-365, and HFC-43-10 and methods for using the same to remove contaminants from a vapor compression system.
摘要:
A method of detecting a leakage of a chemical from a closed system into the environment and/or revealing the location of the leakage is provided. The method includes the steps of: placing a test strip in close proximity of or in direct contact with a suspected leak in the closed system, the test strip including a support material and a color forming composition disposed on the support material, the color forming composition including a dye precursor encapsulated in a microcapsule, a developer and optionally a filler; and detecting development of a color on the test strip in response to contact of the microcapsule with the chemical thereby indicating the presence of and/or the revealing the location of the leak.
摘要:
The use of pentafluoropropene (HFO-1225) and tetrafluoropropene (HFO-1234) in refrigeration equipment is disclosed. These materials are generally useful as refrigerants for heating and cooling, as blowing agents, as aerosol propellants, as solvent composition, and as fire extinguishing and suppressing agents.
摘要:
Provided is a method for selecting a lubricant and a refrigerant for use in a vapor-compression refrigeration device such that the combination of the lubricant and refrigerant produces a fluid system having a lubricant-rich phase and a refrigerant-rich phase, yet exhibits miscible-type properties.
摘要:
A composition comprising 1,3,3,3-tetrafluoropropene (HFO-1234ze) and one or more compounds selected from the group consisting of 1,1,1,2-Tetrafluoroethane (HFC-134a), Difluoroethane (HFC-152a), water, 1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea), 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1,1,1,3,3-pentafluorobutane (HFC-365mfc), water and CO 2 .