Physical presentation teaching box for iodine sublimation and condensation

Abstract

The invention provides a physical presentation teaching box for iodine sublimation and condensation. The box comprises a tweezer and an iodine storing bottle; a left experiment groove and a right experiment groove are formed inside the teaching box, and two article storing grooves are formed in the bottom of the teaching box; the top of the teaching box is of a hollow-out structure; a handle is rotatably connected to the top end surface of the teaching box; two doors are arranged on the box, and two fixed magnets are installed on the front end surface of each door; eight fixed magnets are arranged, wherein four fixed magnets are respectively installed on the left and right side end surfaces of the teaching box; the teaching box in the open-close state can be conveniently fixed by the magnets, and it can be avoided that box doors rotate randomly so as to shield people sight and affect the experiment watching effect; by using a fixing ring, an alcohol burner used for heating the inside of the teaching box can be fixed, and it can be avoided that misoperation of the alcohol burner causes overflow of flammable liquid in the alcohol burner so as to cause flammable liquid burning accidents and potential safety hazard.

Description

technical field [0001] The invention belongs to the technical field of physical experiment equipment, and more specifically relates to a teaching box for iodine sublimation and desublimation physics demonstration. Background technique [0002] Iodine, the 53rd element in the periodic table of elements, is located in the VIA group of the 5th periodic system in the chemical element periodic table and is one of the meat group elements. The sublimation and desublimation of iodine is an important experiment in middle school. Through the experiment, students can better understand the physical properties of iodine and the physical changes of sublimation and desublimation. [0003] Based on the above, the inventor found through retrieval that existing similar devices, such as a teaching tool for high-level iodine sublimation and desublimation physics experiments mentioned in Patent Application No. CN206697119U, include a mounting seat, a pole, and a first slider . The rotary motor...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above technical problems, the present invention provides an iodine sublimation and desublimation physics demonstration teaching box to solve the existing similar devices, which have a poor fixing effect on the alcohol lamp used in the experiment. Overturning, alcohol overflows inside, causing fire hazards and affecting the iodine experiment; and the effect of keeping the inside of the glassware dry is poor, and there is a small amount of water vapor inside the glassware. When the iodine particles inside the glassware are heated, the glassware will White water vapor is formed on the top, which affects the effect of the iodine sublimation experiment

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