CN203338647U

CN203338647U - Experimental device for simply verifying catalysis

Info

Publication number: CN203338647U
Application number: CN2013204020306U
Authority: CN
Inventors: 蒋印亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-08
Filing date: 2013-07-08
Publication date: 2013-12-11
Anticipated expiration: 2023-07-08

Abstract

The utility model discloses an experimental device for simply verifying catalysis and belongs to the technical field of chemical experiments. The experimental device is composed of a bar incense, a test tube, magnets, an iron clamp and an iron stand. The iron clamp of the iron stand clamps the vertical test tube. A hard paper sheet is disposed on a mouth of the test tube. The bar incense passes through the middle of the hard paper sheet, and the hard paper sheet extends into the test tube. Further, an inner wall of the test tube is provided with a magnet storing position which is connected with a catalyst storing position and attracted by the magnet outside the test tube. The magnet is placed at the magnet storing position, a catalyst is placed at the catalyst storing position, and the bottom of the test tube is filled with hydrogen peroxide. Compared with the prior art, the experimental device has the advantages of simple structure, easy manufacturing, obvious phenomenon and less medicine dosage; the experimental device allows pollution and waste to be reduced, and also allows students' interests to be stimulated; and the experimental device is a chemical experimental device easy to transform.

Description

A kind of experimental provision of simple and easy checking catalysis

Technical field

The utility model relates to a kind of chemical experiment improvement device, is a kind of experimental provision of simple and easy checking catalysis specifically.

Background technology

In chemistry teaching, need to probe into the impact of catalyzer on chemical reaction velocity, in teaching material, adopt conical flask to hold hydrogen peroxide, then verified the catalytic action of manganese dioxide to hydrogen peroxide by the batten of diplopore plug, common funnel and ashes, the device space is large, the waste medicine, the success ratio of experiment is not high.

The utility model content

For the problem in background technology, the utility model provides a kind of experimental provision of simple and easy checking catalysis.

A kind of experimental provision of simple and easy checking catalysis, be comprised of bar spices, test tube, magnet, iron clamp and iron stand, and the iron clamp of iron stand clips vertical test tube, and the test tube mouth is placed a hard paper, in the middle of hard paper, passes and bar spices is arranged and stretch in test tube.

Further, inboard wall of test tube has a magnet storeroom connecting the catalyzer storeroom attraction outer by test tube, and the magnet storeroom is placed with magnet, and the catalyzer storeroom is placed with catalyzer, and the test tube bottom is marked with hydrogen peroxide.

Further, the outer magnet by mobile test tube, the magnet that drives test tube inside moves up and down, and then controls contacting of catalyzer and hydrogen peroxide, thereby has verified that catalyzer plays catalytic action to the decomposition of hydrogen peroxide.

Compared with prior art, the utility model is simple in structure, making is easy, and phenomenon is obvious, drug dosage is few, has reduced and has polluted and waste, has excited student's interest, is a kind of chemical experiment device that is easy to transformation.

The accompanying drawing explanation

Fig. 1 is schematic diagram of the present utility model.

Wherein, 1. bar spices, 2. hard paper, 3. test tube, 4.. magnet storeroom, 5. magnet, 6. catalyzer storeroom, 7. catalyzer, 8. iron clamp, 9. iron stand.

Embodiment

Below in conjunction with accompanying drawing, the technical solution of the utility model is done in further detail and is introduced:

A kind of experimental provision of simple and easy checking catalysis, be comprised of bar spices 1, test tube 3, magnet 5, iron clamp 8 and iron stand 9, and the iron clamp 8 of iron stand 9 clips

vertical test tube

3, and 3 mouthfuls of placement one hard papers 2 of test tube, pass and bar spices 1 is arranged and stretch in test tube 3 in the middle of hard paper 2.

Test tube 3 inwalls have a magnet storeroom 4 connecting catalyzer storeroom 6 magnet 5 attractions outer by test tube 3, and magnet storeroom 4 is placed with magnet 5, and catalyzer storeroom 6 is placed with catalyzer 7, and test tube 3 bottoms are marked with hydrogen peroxide.

During experiment, first to test tube 3 bottoms, inject 30% hydrogen peroxide, put catalyzer 7 manganese dioxide or potassium iodide to catalyzer storeroom 6, the magnet 5 outer with test tube 3 attracts on test tube 3 walls, light bar spices 1 and stretch in test tube 3, bar spices 1 is quietly smoldered, and there is no what variation; Moving magnet 5, make catalyzer 7 contact with 30% hydrogen peroxide of test tube 3 bottoms, can see that bar spices 1 blazes up, thereby verified that catalyzer 7 makes decomposing hydrogen dioxide solution accelerate, and the contrast phenomenon is obvious, is a kind of improved experimental provision that is easy to.

The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. the experimental provision of a simple and easy checking catalysis, by bar spices (1), test tube (3), magnet (5), iron clamp (8) and iron stand (9), formed, it is characterized in that, the iron clamp (8) of iron stand (9) clips vertical test tube (3), test tube (3) mouthful is placed a hard paper (2), in the middle of hard paper (2), passes and bar spices (1) is arranged and stretch in test tube (3); Test tube (3) inwall has a magnet storeroom (4) connecting catalyzer storeroom (6) magnet (5) attraction outer by test tube (3), magnet storeroom (4) is placed with magnet (5), catalyzer storeroom (6) is placed with catalyzer (7), and test tube (3) bottom is marked with hydrogen peroxide.