Reaction integrated device for experiment

Abstract

The invention belongs to the technical field of a chemical teaching tool, and particularly relates to a reaction integrated device for experiment. The reaction integrated device for experiment comprises a first injection device and a second injection device; the first injection device and the second injection device comprise main injectors, and first assistant injectors and second assistant injectors which are linked to the main injector; the first assistant injectors and second assistant injectors are connected through a U-shaped pipe. The experiment step is simplified and the preparation time before class is shortened; the injectors are used as generation and collection devices for preparing carbon dioxide, and the prepared carbon dioxide gas can be used immediately. The device can carryout the experiment of reaction between carbon dioxide and sodium hydroxide solution, and is composed of a part of components of 50 ml and 5 ml injectors and infusion apparatuses; the reaction integrated device is small and light, convenient to carry, simple in operation, strong in repeatability, and can be prepared to be a complete set device, and used for a long term.

Description

technical field [0001] The invention belongs to the technical field of chemistry teaching appliances, and in particular relates to an experimental reaction integration device. Background technique [0002] In the tenth unit of the second volume of the ninth grade of the People's Education Edition, for the reaction of carbon dioxide and sodium hydroxide solution, students are only asked to compare the reaction of carbon dioxide and calcium hydroxide solution and write the corresponding reaction equation, and no related experiments are designed. Therefore, students lack perceptual knowledge of this important reaction. Since sodium hydroxide solution and sodium carbonate solution are colorless, it is difficult to show obvious phenomena in the demonstration of the reaction between sodium hydroxide solution and carbon dioxide in an open container. [0003] Commonly used experimental demonstration methods are: bottle swallowing egg method, soft plastic bottle method, balloon metho...

AI Technical Summary

Problems solved by technology

However, the existing experimental methods have the following problems: 1. The amount of medicine used is large; 2. A large amount of carbon dioxide gas needs to be collected before class; good CO 2 After adding H 2 When O and NaOH are in solution, it is easy to make the CO in the gas collection bottle 2 overflow, resulting in large errors

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