Abstract: A working fluid for a heat cycle, contains: trifluoroethylene; and a first component consisting of at least one of substance selected from carbon dioxide, fluoromethane, trifluoroiodomethane, methane, ethane, propane, helium, neon, argon, krypton, xenon, nitrogen and ammonia.

Abstract: To provide a fluid composition and a refrigerant composition having flammability suppressed; and an air conditioner in which restrictions in order to inhibit combustion of the refrigerant composition are reduced and it is thereby possible to omit or simplify measures for inhibiting combustion of the refrigerant composition. The fluid composition is either a composition (I) comprising at least one component (A) selected from the group consisting of alkanes, halogenated alkanes and alkenes and at least one component (B) selected from halogenated alkenes, or a composition (II) (excluding the composition (I)) comprising two or more ingredients (B) selected from halogenated alkenes. The fluid composition has a combustion inhibiting effect as defined by ?100×{(measured maximum burning velocity)?(estimated maximum burning velocity)}/(estimated maximum burning velocity), of at least 10%.

Abstract: To provide a production process with high degree of conversion of HFC-134a and selectivity for HFO-1123, with a high productivity of HFO-1123 and with a small load in process of purification and recovery. A process for producing HFO-1123, which comprises bringing a material gas having a proportion of HFC-134a based on the total amount of a diluent gas and HFC-134a of from 50 to 100 mol % into contact with a dehydrofluorination catalyst to convert part of HFC-134a into HFO-1123, then removing hydrogen fluoride in a reaction product gas, and then bringing the reaction product gas from which hydrogen fluoride has been removed into contact with a dehydrofluorination catalyst to convert at least part of unreacted HFC-134a into HFO-1123.

Abstract: A method to stably produce trifluoroethylene with a high selectivity by reacting 1,1,1,2-tetrafluoroethane with a solid reactant and suppressing the formation of by-products such as polymer carbon is provided. In the method, a material gas containing 1,1,1,2-tetrafluoroethane passes through a layer consisting of a particulate solid reactant having an average particle size of from 1 ?m to 5,000 ?m to bring the solid reactant and 1,1,1,2-tetrafluoroethane into contact with each other in a state where the layer consisting of the solid reactant is fluidized.

Abstract: The present invention relates to a production process capable of selectively producing various kinds of carbonate compounds without restraint in high yields without using toxic compounds such as phosgene and crown ethers, without producing corrosive gases such as hydrogen chloride as a by-product, and without necessity of removing the chloroform as a by-product by distillation, and to a method for producing a carbonate compound, containing reacting compound (1) with a compound having an OH group in the presence of a metal salt and 0.2 to 4.0 mol of compound (2) per mol of the metal salt to obtain a carbonate compound, in which m is an integer of 1-10, Q is an alkylene group having 1 to 4 carbon atoms, etc, and R10 and R11 are alkyl groups having 1 to 5 carbon atoms, etc.

Abstract: The present invention relates to a production method of hexachloroacetone, including performing a reaction between at least one kind of compound (A) selected from the group consisting of acetone and chloroacetones having a chlorine atom number of from 1 to 5, and a chlorine molecule (B) in a solvent in the presence of an activated carbon, to obtain the hexachloroacetone.

Abstract: To provide a heat cycle system with high durability, which employs a working fluid for heat cycle containing trifluoroethylene having a low global warming potential. A heat cycle system 10 which has a circulation path in which a working fluid for heat cycle containing trifluoroethylene is circulated from a compressor 11 via a condenser 12, an expansion valve 13 and an evaporator 14 to the compressor 11, wherein a conductor wire provided in the circulation path is covered with a heat resistant material having a heat resistance of at least 300° C.

Abstract: To provide a production process with high degree of conversion of HFC-134a and selectivity for HFO-1123, with a high productivity of HFO-1123 and with a small load in process of purification and recovery. A process for producing HFO-1123, which comprises bringing a material gas having a proportion of HFC-134a based on the total amount of a diluent gas and HFC-134a of from 50 to 100 mol % into contact with a dehydrofluorination catalyst to convert part of HFC-134a into HFO-1123, then removing hydrogen fluoride in a reaction product gas, and then bringing the reaction product gas from which hydrogen fluoride has been removed into contact with a dehydrofluorination catalyst to convert at least part of unreacted HFC-134a into HFO-1123.

Abstract: To provide a working fluid for heat cycle which has high durability, which is excellent in the compatibility with a greater variety of refrigerant oils, and which is excellent in the cycle performance (capacity), a composition for a heat cycle system, and a heat cycle system. A working fluid for heat cycle, which contains trifluoroethylene and difluoromethane, wherein the proportion of the total amount of trifluoroethylene and difluoromethane based on the entire amount of the working fluid for heat cycle is higher than 90 mass %, and the mass ratio represented by trifluoroethylene/difluoromethane in the working fluid for heat cycle is from 21/79 to 39/61, a composition for a heat cycle system, and a heat cycle system employing the composition.

Abstract: A working fluid for heat cycle which has a low global warming potential and which has self-decomposition property suppressed, a composition for a heat cycle system comprising it, and a heat cycle system employing the composition. A working fluid for heat cycle, which contains trifluoroethylene and 2,3,3,3-tetrafluoropropene, wherein the proportion of the total amount of trifluoroethylene and 2,3,3,3-tetrafluoropropene based on the entire amount of the working fluid is higher than 90 mass % and at most 100 mass %, and the proportion of trifluoroethylene based on the total amount of trifluoroethylene and 2,3,3,3-tetrafluoropropene is at least 21 mass % and at most 39 mass %, a composition for a heat cycle system, which comprises the working fluid for heat cycle, and a heat cycle system, which employs the composition.

Abstract: To provide a composition for a heat cycle system comprising trifluoroethylene (HFO-1123), which has a low global warming potential and excellent cycle performance of HFO-1123 and which has high durability, and a heat cycle system employing the composition, which has less influence over global warming and has both high cycle performance and durability. A composition for a heat cycle system, which comprises a working fluid for heat cycle containing trifluoroethylene, and a radical scavenger, and a heat cycle system employing the composition for a heat cycle system.

Abstract: To provide a working fluid for heat cycle which has a small temperature glide, a sufficiently low discharge temperature, high durability and less influence over global warming, and with which a heat cycle system excellent in the system maintenance properties and the cycle performance (capacity) is achieved, a composition for a heat cycle system, and a heat cycle system. A working fluid for heat cycle, which contains trifluoroethylene and difluoromethane, wherein the proportion of the total amount of trifluoroethylene and difluoromethane based on the entire amount of the working fluid for heat cycle is higher than 90 mass % and at most 100 mass %, and the mass ratio represented by trifluoroethylene/difluoromethane in the working fluid for heat cycle is from 41/59 to 59/41, a composition for a heat cycle system, and a heat cycle system employing the composition.

Abstract: To efficiently produce trifluoroethylene stably by using 1,1,1,2-tetrafluoroethane, without clogging of a reactor, addition of extra process, a decrease in the yield of a product, and the like. A material gas containing 1,1,1,2-tetrafluoroethane and calcium oxide are brought into contact with each other in a reactor. The material gas in a gaseous phase and calcium oxide in a solid phase are brought into contact with each other.

Abstract: To produce trifluoroethylene stably with a high selectivity by reacting 1,1,1,2-tetrafluoroethane with a solid reactant efficiently while formation of by-products such as polymer carbon is suppressed. A material gas containing 1,1,1,2-tetrafluoroethane is made to flow through a layer consisting of a particulate solid reactant having an average particle size of from 1 ?m to 5,000 ?m to bring the solid reactant and 1,1,1,2-tetrafluoroethane into contact with each other in a state where the layer consisting of the solid reactant is fluidized.

Abstract: To provide a composition for a heat cycle system having less influence over the ozone layer, having a low global warming potential and having excellent durability, and a heat cycle system. A composition for a heat cycle system comprising a working fluid containing trifluoroethylene and difluoromethane, and a lubricating oil, wherein the interaction distance (Ra1123) between trifluoroethylene and the lubricating oil as determined from the Hansen solubility parameters is shorter than the interaction distance (Ra32) between difluoromethane and the lubricating oil.

Abstract: To provide a working fluid which has cycle performance sufficient as an alternative to R410A while the influence over global warming is sufficiently suppressed, which does not significantly increase the load to an apparatus as compared with a case where R410A is used, and which can be stably used continuously without any special measures, a composition for a heat cycle system comprising the working fluid, and a heat cycle system employing the composition. A working fluid for heat cycle, wherein the global warming potential is less than 300; the product of the relative coefficient of performance and the relative refrigerating capacity is at least 0.820 relative to R410A in a standard refrigerating cycle under conditions of an evaporation temperature of 0° C., a condensing temperature of 40° C., a supercoiling degree of 5° C. and a degree of superheat of 5° C.; the relative compressor discharge gas pressure is at most 1.

Abstract: The present invention relates to a production method of hexachloroacetone, including performing a reaction between at least one kind of compound (A) selected from the group consisting of acetone and chloroacetones having a chlorine atom number of from 1 to 5, and a chlorine molecule (B) in a solvent in the presence of an activated carbon, to obtain the hexachloroacetone.

Abstract: The present invention relates to a method of producing a carbamate compound, comprising reacting a fluorine-containing carbonic diester compound represented by formula (1) and a non-aromatic diamine compound represented by formula (2) without using a catalyst, to thereby produce a carbamate compound represented by formula (3), and a method of producing an isocyanate compound represented by formula (20) from the carbamate compound without using a catalyst, wherein R represents a fluorine-containing monovalent aliphatic hydrocarbon group, and A represents a divalent aliphatic hydrocarbon group, a divalent alicyclic hydrocarbon group or a divalent aromatic-aliphatic hydrocarbon group.

Abstract: To provide a composition containing HFO-1123 having a low GWP, useful as a heat transfer composition, an aerosol sprayer, a foaming agent, a blowing agent, a solvent or the like. A composition containing HFO-1123, and at least one first compound selected from the group consisting of HFO-1132, HFO-1132a, CFO-1113, HCFO-1122, HCFO-1122a, HFC-143 and methane.

Abstract: The present invention relates to a method for producing a carbonate compound containing: a first step of reacting a compound represented by the following Formula (1) with a compound represented by the following Formula (21) or a compound represented by the following Formula (22) to obtain a reaction mixture containing a carbonate compound, and a second step of bringing the reaction mixture containing a carbonate compound into contact with a strongly basic compound, in which R1 represents a monovalent organic group, and R2 represents a divalent organic group.