PROBLEM TO BE SOLVED: To provide a new microwave hydrothermal reaction visualizing cell for confirming visually by a microwave, a change of a superheated state to aqueous solution stored in a cell and a change generated when cooling the solution.;SOLUTION: The hydrothermal reaction visualizing cell by the microwave is constituted as follows: a transparent pressure-resistant glass tube 2 for observation is stored concentrically inside a transparent cylinder 1; an exhaust pump 16 is connected through a suction tube 14 to a space part A formed between both of the transparent cylinder 1 and the glass tube 2 for observation; a cooling water storage tank 17 is connected through a water supply tube 15, to thereby constitute the space A as a space for forming a vacuum heat insulating layer when raising a temperature or as a space for introducing cooling water during a cooling period; further, an introduction pipe 5 for introducing a solution which is an observation object is connected to the glass tube 2 for observation; and the transparent cylinder 1 and the glass tube 2 for observation having such a configuration are set in a heating chamber 18 by the microwave with an openable/closable door having a transparent window.;COPYRIGHT: (C)2009,JPO&INPIT
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