Abstract: An oxidation treatment method of the present invention includes the step of bringing a solution having an ozone concentration of 120 to 500 mg/L into contact with a substance to be treated made of a combustible substance, thereby subjecting the substance to be treated and the surface thereof to an oxidation treatment. An oxidation treatment apparatus of the present invention includes: a dissolving means that dissolves an oxygen-ozone mixed gas in a fluorine-based solvent to form mixed fluid; an undissolved gas removal means that removes an undissolved gas from the mixed fluid to form a solution; and an oxidation treatment means that brings the solution into contact with a substance to be treated made of a combustible substance, thereby subjecting the substance to be treated and the surface thereof to an oxidation treatment.

Abstract: A reaction device having improved temperature control precision and reduced usage of heat transfer medium. The device includes a heat transfer medium circulation tube in contact with an outer wall of a reaction vessel containing a reaction liquid. The device has an inlet for the liquid heat transfer medium at the lower end portion of the heat transfer medium circulation tube, and an outlet for the heat transfer medium. Gaps between the heat transfer medium circulation tube and the reaction vessel outer wall include a filler in which a liquid can flow inside the filler. The outlet is formed so that the liquid heat transfer medium is discharged toward the filler. A member presses the heat transfer medium circulation tube against the outer wall of the reaction vessel. An outer vessel hermetically covers the outer circumference of the reaction vessel.

Abstract: Provided is a cryopreservation device which is small-sized and light-weight and has a low price, and also which is easy to get a cryocane in and out of. The cryopreservation device is configured to include first rotation lid 13 rotatably mounted on upper opening of container body 11, second rotation lid 14 rotatably provided on circular opening provided on the first rotation lid, through-hole for getting a cryocane in and out of provided on the second rotation lid, tubular body 15 provided in a protruding manner upward from the second rotation lid, lifting device 16 arranged inside the tubular body, cane gripper 17 provided on the lifting device, and door 18 provided on the tubular body, wherein any of cryocanes held at a center portion to the periphery of the container body on the cryocane holder can be gripped by rotating the first rotation lid with respect to the upper opening and by rotating the second rotation lid with respect to the first rotation lid to adjust the position of the through-hole.

Abstract: Provided is a reaction device having a simple structure in which a temperature control precision can be improved, and at the same time, the amount of heat medium used can be reduced, and the device is provided with a heat-medium circulation tube 15 in contact with an outer wall of a reaction vessel 13 containing a reaction liquid 12. The reaction device of the present invention is provided with an inlet for the liquid heat medium at the lower end portion of the heat-medium circulation tube 15, and an outlet for the liquid heat medium or a gas heat medium which is a vaporized liquid heat medium at the upper end portion of the heat-medium circulation tube 15, respectively. Gaps between the heat-medium circulation tube 15 and the reaction vessel 13 outer wall are filled with a filler 22. The filler 22 is formed by a material in which a liquid can flow inside the filler 22, and the outlet is formed in a direction such that the liquid heat medium is discharged toward the filler 22.

Abstract: An oxidation treatment method of the present invention includes the step of bringing a solution having an ozone concentration of 120 to 500 mg/L into contact with a substance to be treated made of a combustible substance, thereby subjecting the substance to be treated and the surface thereof to an oxidation treatment. An oxidation treatment apparatus of the present invention includes: a dissolving means that dissolves an oxygen-ozone mixed gas in a fluorine-based solvent to form mixed fluid; an undissolved gas removal means that removes an undissolved gas from the mixed fluid to form a solution; and an oxidation treatment means that brings the solution into contact with a substance to be treated made of a combustible substance, thereby subjecting the substance to be treated and the surface thereof to an oxidation treatment.