Bulletin of Society of Japan Science Teaching
Online ISSN : 2433-0140
Print ISSN : 0389-9039
Utilization of an Electric Wire on the Oxidation Reduction Reaction
Ken AKIMOTOChitatsu NAGASAWA
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JOURNAL FREE ACCESS

1980 Volume 20 Issue 2 Pages 15-22

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Abstract

On the oxidation-reduction reaction, the apparatus has been used a copper net with small meshes. t, these net is not sold on the market, generally. A copper net can be used as substitute for a sted wire of cord, and by using it chemical reaction is very effectively. When the temperature in reaction tube goes up over 350°C, the copper wire react speedily on the oxygen. On such tempera e, when the air pass through the reaction tube, the copper wire is oxidized rapidly. And, when the lrogen gas, city gas or propane gas are passing through the reaction tube, the oxidized copper wire reduced rapidly. In such case, the volume of oxygen combined with the copper wire, can be .ressed as the next equation. In this equation, M represents the mass of the copper wire in the ction tube, 2r represents the diameter of the copper wire and 2.07 x 10-• is the special constant to , experiment. V(20℃, 1 atm.)=2.07・(M/2r)・10-4······(ℓ)

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© 1980 Society of Japan Science Teaching
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