Abstract: It is desired to develop a method of producing hydrogen peroxide, which is capable of producing hydrogen peroxide with high production efficiency. According to the present invention, provided is a palladium-containing composition comprising palladium particles and a coating agent that coats the surface of the palladium particles, wherein a compound having an O?X structure (wherein X represents any of a phosphorus atom, a sulfur atom, and a carbon atom) is comprised as the coating agent.

Abstract: It is desired to develop a method of producing hydrogen peroxide, which is capable of producing hydrogen peroxide with high production efficiency. According to the present invention, provided is a palladium-containing composition comprising palladium particles and a coating agent that coats the surface of the palladium particles, wherein a compound having an O?X structure (wherein X represents any of a phosphorus atom, a sulfur atom, and a carbon atom) is comprised as the coating agent.

Abstract: It is desired to develop a method of producing hydrogen peroxide, which is capable of producing hydrogen peroxide with high production efficiency. According to the present invention, provided is a palladium-containing composition comprising palladium particles and a coating agent that coats the surface of the palladium particles, wherein a compound having an O?X structure (wherein X represents any of a phosphorus atom, a sulfur atom, and a carbon atom) is comprised as the coating agent.

Abstract: A composition for sterilization and cleaning which comprises 0.001-30 mass % peracetic acid, 0.001-30 mass % hydrogen peroxide, 1-70 mass % acetic acid and/or salt thereof, 0.001-5 mass % polyoxyethylene lauryl ether acetate or salt thereof, and water, the composition having a pH of 4.0-10.0.

Abstract: There are disclosed (1) a process for producing ammonium persulfate which comprises electrolyzing, as the starting raw material for an anode, an aqueous solution containing ammonium sulfate wherein ammonium ions are present in an amount of at least one equivalent based on sulfate ions; (2) a process for producing sodium persulfate which comprises the step (A) of electrolyzing an aqueous solution containing ammonium sulfate at an anode, the step (B) of producing sodium persulfate, the step (C) of crystallizing and separating the sodium persulfate and the step (D) of recycling the liquid produced at a cathode together with ammonia for use as the starting raw material for an anode in the step (A); and (3) a process for producing potassium persulfate which comprises the step (A′) of electrolyzing an aqueous solution containing ammonium sulfate at an anode; and the step (B′) of producing potassium persulfate.

Abstract: There is disclosed a process for producing sodium persulfate which comprises the step (1) of electrolyzing, at an anode, a solution containing ammonium sulfate, and the step (2) of producing sodium persulfate from the resultant liquid produced at the anode and sodium hydroxide and, as desired, the step of removing sodium sulfate, and further as desired, the step (3) of performing crystallization on the reaction liquid as produced in the step (2). According to the above process, it is made possible to efficiently produce sodium persulfate having a markedly high purity substantially free from nitrogen components at a high yield at a high current efficiency in electrolysis.

Abstract: A process for the production of a dialkyl carbonate comprisinga first step of reacting an alkylene glycol, or an alkanediol, with urea in the presence of a catalyst to form an alkylene carbonate or a six-membered cyclic carbonate, anda second step of reacting the alkylene carbonate or the six-membered cyclic carbonate with an alcohol in the presence of a catalyst to obtain a dialkyl carbonate and an alkylene glycol, or a dialkyl carbonate and an alkanediol,wherein the alkylene glycol or the alkanediol obtained in the second step is recycled to the first step.

Abstract: A method for the production of an alkylene carbonate at high yields and high selectivity by a reaction between an alkylene glycol and urea, the method being capable to preventing the deposition of a white crystal in the reflux condenser used in a conventional method for the production of alkylene carbonate and the subsequent decrease in the yield, wherein:a gas washing member and a cooling member are disposed above a reaction portion where alkylene glycol and urea are allowed to react,ammonia-containing steam exhausted from the reaction portion is downwardly introduced into the cooling member through the gas washing member,condensate and ammonia gas exhausted from a bottom of the cooling member are gas-liquid separated,the condensate is introduced into the gas washing member, andthe ammonia gas is removed from the reaction system.