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CO2 white-spring continuous experiment device

An experimental device and fountain technology, which is applied in the field of CO2 white fountain continuous experimental device, can solve problems such as difficult to ensure airtightness, difficult success, and trouble, and achieve the effect of reasonable structure, simple production and convenient use

Inactive Publication Date: 2014-06-04
贺明华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the teacher must use the air exhaust method to collect NH every time during the experiment. 3 , connect the device irregularly, and after each spraying,

Method used

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  • CO2 white-spring continuous experiment device

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Experimental program
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Effect test

Embodiment Construction

[0009] like figure 1 As shown, the experimental setup includes CO 2 The gas generating device and the fountain experiment device are composed of two parts, the CO 2 The gas generating device is composed of an Erlenmeyer flask 7 and a long-necked funnel 8. The fountain experiment device is composed of a plastic bottle 3 placed on the test rack 1 and a round bottom flask 2 inverted on the test rack 1. The bottle of the plastic bottle 3 A small round hole is provided on the cover 17, and rubber stoppers 16, 9 are respectively provided on the round bottom flask 2 and the mouth of the Erlenmeyer bottle, and a glass conduit 4 connected to a latex tube by a three-way joint is arranged between, and the mouth of the Erlenmeyer flask 7 passes through Latex tube 11 links to each other with tee joint, and the bottle mouth of round bottom flask 2 is provided with latex tube 14, and its other end is put into the purple litmus test solution that is arranged on the beaker 13 li on the side. ...

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PUM

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Abstract

The invention discloses a CO2 white-spring continuous experiment device which solves problems in the prior art that spring experiments are carried out through relying on gases with high solubility and operation is troublesome and experiment cannot be carried out continuously and the like. The device is characterized in that a CO2 gas generation device includes a conical bottle (7) and a long-neck funnel (8); a spring experiment device includes a plastic bottle (3) placed on an experiment support (1) and a round-bottom flask (2) placed in an inversed manner on the experiment support (1); a little round hole is arranged in a bottle cover (17) of the plastic bottle (3); the conical bottle (7) and the round-bottom flask (2), and the plastic bottle (3) and a beaker (13) are connected through latex tubes. A purple litmus test solution is arranged in the beaker (13); a Ba(OH)2 solution (6) is placed in the plastic bottle; and limestones (10) are rotated in the conical bottle (7). The CO2 white-spring continuous experiment device has the advantages of being reasonable in design, simple in structure and convenient to use and the like and is a CO2 white-spring continuous experiment device which adopts a gas slightly soluble in water to carry out spring teaching experiments.

Description

1. Technical field [0001] The invention belongs to a chemical experiment device, in particular to a CO 2 White fountain continuous experimental setup. 2. Technical background [0002] The "Fountain Experiment" is an important experiment in the high school chemistry course. The teacher demonstrates NH to the students in class 3 (Phenolphthalein) fountain experiment, can let students learn related knowledge. Usually highly soluble gases, such as NH 3 , HCl, etc. can form a beautiful fountain. However, the teacher must use the air exhaust method to collect NH every time during the experiment. 3 , connect the device irregularly, and after each spraying, it is very troublesome to repeat the operation, and it is difficult to ensure the airtightness, such as CO 2 slightly soluble in H 2 The gas of O is hardly successful. 3. Contents of the invention [0003] The object of the present invention is to provide a CO2 with reasonable design, simple structure and convenient use,...

Claims

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Application Information

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IPC IPC(8): G09B23/24
Inventor 贺明华张航
Owner 贺明华
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