An immersion cooling system includes a fluid-retaining container having space for accommodating an electronic device. A heat transfer fluid is in contact with the electronic device. A heat exchanger contacts and condenses vapor from vaporization of the heat transfer fluid. The heat transfer fluid has a thermal conductivity higher than 0.08 W m.sup.−1K.sup.−1, a dielectric constant (D.sub.k) 20-40 GHz less than 3.0, and a heat of vaporization higher than 150 kJ kg.sup.−1, with fire retarding features, compatibility with plastics, metals, rubbers and includes a partially fluorinated compound. The improved immersion cooling system includes fluids with increased thermal conductivity and heat of vaporization while reducing fluid density and maintaining the advantages of the fluid being non-flammable, having high electrical stability and a low dielectric constant.

The present invention relates to a method for manufacturing semiconductor devices, including a step wherein a semi-conductor device exchanges heat with a heat transfer fluid. The heat transfer fluid comprises one or more chemical compounds having the general formula: Ph(OR.sub.f).sub.x (I) wherein Ph is an aromatic ring linked to one or more ether groups —OR.sub.f where each —R.sub.f: — is a monovalent fluorinated alkyl group comprising at least one C—F bond, — has a carbon chain, preferably a C.sub.1-C.sub.10 carbon chain, which can be linear or can comprise branches and/or cycles, and, optionally, can comprise in chain heteroatoms selected from O, N or S, and wherein, when X>1, the —R.sup.f groups on the same molecule can be equal to or different from each other.

An anhydrous heat transfer medium, comprising any one or a combination of at least two of cis-1-chloro-3,3,3-trifluoropropene, cis-1,1,1,4,4,4-hexafluorobutene or perfluorobutane methyl ether. The heat transfer medium does not require an external device to perform work on the heat transfer medium during a heat transfer process, and is anhydrous, non-combustible, non-conductive and environmentally friendly.

An alkoxyvinyl ether is disclosed having the chemical structure R.sub.fC(OR)═CHR.sub.f′, wherein R.sub.f is an at least partially fluorinated functional group having at least one carbon atom, R.sub.f′ is an at least partially fluorinated functional group having at least two carbon atoms, and R is a functional group. A method for preparing an alkoxyvinyl ether is disclosed, comprising R.sub.fCFHCFHR.sub.f′+KOH/ROH.fwdarw.R.sub.fC(OR)═CHR.sub.f′, wherein R.sub.f is a perfluoro functional group, R.sub.f′ is a perfluoro functional group, and R is an alkyl functional group. Another method for preparing an alkoxyvinyl ether is disclosed, comprising R.sub.fCF═CHR.sub.f′+KOH/ROH.fwdarw.R.sub.fC(OR)═CHR.sub.f′, wherein R.sub.f is a perfluoro functional group, R.sub.f′ is a perfluoro functional group, and R is an alkyl functional group.

The present disclosure provides minimum-boiling, homogeneous azeotropic and azeotrope-like compositions of 1,2,2-trifluoro-1-trifluoromethylcyclobutane (“TFMCB”) with each of ethanol, n-pentane, cyclopentane, trans-1,2-dichloroethylene, and perfluoro(2-methyl-3-pentanone).

The present disclosure describes methods of controlling corrosion in aqueous heat transfer systems, such as boiler systems. The methods add a morpholine generating agent to the aqueous heat transfer system. The methods form morpholine in situ by the partial decomposition of the morpholine generating agent in the aqueous heat transfer system.

A hydrohaloolefin composition includes a hydrohaloolefin as a main component, further includes 1,1,2,3-tetrafluorobutane, in which a content of the 1,1,2,3-tetrafluorobutane is 0.001 to 0.1% by mass with respect to a total amount of organic compounds.

An alkoxyvinyl ether is disclosed having the chemical structure R.sub.fC(OR)═CHR.sub.f′, wherein R.sub.f is an at least partially fluorinated functional group having at least one carbon atom, R.sub.f′ is an at least partially fluorinated functional group having at least two carbon atoms, and R is a functional group. A method for preparing an alkoxyvinyl ether is disclosed, comprising R.sub.fCFHCFHR.sub.f′+KOH/ROH.fwdarw.R.sub.fC(OR)═CHR.sub.f′, wherein R.sub.f is a perfluoro functional group, R.sub.f′ is a perfluoro functional group, and R is an alkyl functional group. Another method for preparing an alkoxyvinyl ether is disclosed, comprising R.sub.fCF═CHR.sub.f′+KOH/ROH.fwdarw.R.sub.fC(OR)═CHR.sub.f′, wherein R.sub.f is a perfluoro functional group, R.sub.f′ is a perfluoro functional group, and R is an alkyl functional group.

The use of a heat-transfer composition comprising from 20% to less than 100% by weight of a refrigerant including a compound chosen from halogenated hydrocarbons, perhalogenated compounds, fluorinated ketones, fluorinated ethers and also their combinations, and from more than 0% to 80% by weight of a dielectric fluid, for cooling a battery, the battery including energy storage cells immersed in the heat-transfer composition, and the heat-transfer composition undergoing evaporation on contact with the energy storage cells.

The use of a heat-transfer composition including from more than 0% to 40% by weight of a refrigerant including a compound chosen from halogenated hydrocarbons, perhalogenated compounds, fluorinated ketones, fluorinated ethers and the combinations thereof, and from 60% to less than 100% by weight of a dielectric fluid, in order to regulate the temperature of a battery, the battery including energy storage cells immersed in the heat-transfer composition in the liquid state, and the heat-transfer composition undergoing essentially no change of state.