METHOD FOR PRODUCING REACTION PRODUCT IN WHICH PHASES INTERFACE REACTION IS EMPLOYED, PHASES INTERFACE REACTOR, AND METHOD FOR PRODUCING SECONDARY REACTION PRODUCT
[Problem] To provide: a method for producing a reaction product in which there is employed a phases interface reaction that makes it possible to efficiently bring about a reaction between a plasma-form substance (ozone, nitrogen plasma, etc.) and water or the like； a phases interface reactor； and a method for producing a secondary reaction product. [Solution] The present invention pertains to: a phases interface reactor (10) that is provided with a reaction vessel (11), a plasma supply means (12) for supplying a plasma-form substance into the reaction vessel (11), a water/aqueous solution supply means (13, 19) for supplying water or an aqueous solution into the reaction vessel (11), and an ultraviolet ray irradiation means (14) for irradiating the plasma-form substance in the reaction vessel (11) with ultraviolet rays； said device (10) causing the plasma-form substance and a solute contained in water or an aqueous solution to react at the phases interface in a reaction vessel (11). The present invention also pertains to a method for producing a reaction product in which the phases interface reaction is employed, and a secondary reaction product producing method for producing a secondary reaction product using the reaction product.
