The advantages and disadvantages of Qipu generator, what is Qipu generator and its principle and cha

Qipu generatorCons:In line with the principle of "open and use, close and stop". It can save drugs, control the occurrence and stop of reactions, and add liquid drugs to the device at any time.

Disadvantages of the Qipu generator:When bulk solids dissolve or become powders very quickly in the reaction, the Energizer cannot be used.

Qipu generator is a kind of gas generating device commonly used in laboratories, and it is one of the most common and widely used chemical glass instruments. Invented by the Dutch scientist Petrus Jacobus Kipp (1808-1864) and named after him.

It is made of ordinary glass. It consists of three parts: a spherical funnel, a container, and a trachea. It is suitable for the reaction of bulk solid (not used for powder medicine) and liquid at room temperature to produce gas, such as hydrogen and hydrogen sulfide.

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Inventor. The inventor of the Qipu generator is called Qipu, a Dutchman, he was born on March 5, 1808, and died on February 3, 1864, at the age of 57. Keep used to learn a little bit of chemistry, but was basically a drug merchant.

At the beginning of the 19th century, chemistry in the Netherlands was not very developed, and a technical university was established in the Netherlands, and he wanted to ask Qipp to be a professor of geology, because his own business was relatively developed, so he did not accept the employment of the technical university.

In addition to business, Qipu also designed a gas generator based on the simple device made by his predecessors to generate hydrogen sulfide gas, and when it is not used, the gas is generated, and when it is not used, the acid rises, and the gas stops.

Because this kind of gas generator was basically created by Qipu and blown by workers who can blow glass, later generations called this kind of instrument Qipu generator. He designed this kind of inflator for laboratory use, and it has been used ever since, basically unchanged.

In addition to the Qipu generator, Qipu also invented some small things. For example, the colored pencils used by the painter for painting were also made by Qipu first, so he was familiar with many painters of the time. Chipp died relatively early, and his estate was inherited by his son, and although it was later transferred, the company was still called "Chipp & Sons", and it is still a well-known scientific instrument company in the Netherlands.

The above content reference: Encyclopedia-Qipu Generator.

Encyclopedia - Chemical Instruments.

The biggest advantage is that by controlling the exhaust gate, the reaction can be started or stopped at any time as needed. The disadvantage is that it can only be used in reactions where there is gas formation.

The main purpose of the Qipu generator is that it is suitable for the reaction of bulk solid and liquid that does not need to be heated to produce gases that are difficult to dissolve in water.

Precautions: It cannot be heated, and it cannot be used for reactions that are strongly exothermic or rapidly release gas. Before use, apply a small amount of petroleum jelly to the piston at the bottom of the container, the spherical funnel and the frosted mouth of the spherical container to prevent air leakage.

The advantage is that the start and end of the reaction can be controlled. It is easy to prepare and save reagents.

The disadvantages are: it cannot be heated, the reaction cannot be too drastic, and the heat change cannot be too large. One of the reactants, if it is a powder or a soluble solid, cannot adopt the device. The resulting gas is easily dissolved in liquids and is not suitable for this device.

The biggest advantage is that the exhaust gate can be controlled.

The reaction can be made at any time as needed, and the reaction can also be stopped at any time. The disadvantage is that it can only be used for reactions where there is gas formation.

Qipu generator

Main uses: It is suitable for the reaction of bulk solid and liquid that does not need to be heated to prepare gases that are difficult to dissolve in water.

Precautions: It cannot be heated, and it cannot be used for strong exothermic and urgent reactions that contain gas released from Li drama. Before use, apply a small amount of petroleum jelly to the piston at the bottom of the container, the spherical funnel and the frosted mouth of the spherical container.

Prevent air leakage. <>

A Qipu generator is a type of gas generator, also known as a Qili gas generator or hydrogen mega gas generator. In the laboratory, a large amount of hydrogen is produced, and the Qipu generator is commonly used. It is composed of three parts: a long-neck funnel, a container and a pipe for air conduction.

Principle: When using the instrument at the beginning, put the instrument horizontally, add the zinc particles from the mouth of the air duct inserted into the container, then put the instrument in place, and then plug the plug containing the air duct. Dilute hydrochloric acid is then added through the spherical funnel mouth.

When used, the piston of the air guide tube is twisted, and the acid flows from the spherical funnel to the bottom of the container, and then rises to the middle to contact the zinc particles and reacts, and the hydrogen produced is released from the air duct. When not in use, close the piston of the air duct, and the hydrogen gas produced by the continuous reaction in the container increases the pressure in the container, and the acid is hydraulic back to the spherical funnel, so that the acid liquid is out of contact with the zinc particles, and the reaction stops by itself.

Features: In line with the principle of "use with opening, with shutdown and stopping", it can save drugs, control the occurrence and stop of reactions, and add liquid drugs to the device at any time.

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System: Windows 10

The principle of Qipu generator: open the piston, the pressure in the container is the same as the outside atmospheric pressure, and the dilute sulfuric acid in the spherical funnel flows into the container under the action of gravity, and contacts with zinc particles to produce hydrogen; After the piston is closed, hydrogen is still generated because the acid continues to contact with the zinc particles, and the internal pressure of the container is stronger than the outside atmospheric pressure, and the pressure hydraulics the acid back to the spherical funnel, so that the acid is disengaged from the zinc particles, and the hydrogen is no longer generated.

Qipu generator is a kind of gas generating device commonly used in laboratories, and it is one of the most common and widely used chemical glass instruments. Invented by the Dutch scientist Petrus Jacobus Kipp (1808-1864) and named after him. It is made of ordinary glass.

It consists of three parts: a spherical funnel, a container, and a trachea. It is suitable for the reaction of bulk solid (not for powder medicine) and liquid at room temperature to produce gas, such as hydrogen, hydrogen sulfide, etc.

Precautions: 1. Check the air tightness of the device before use, and collect the gas after exhausting the air;

2. The use of Qipu generator to prepare hydrogen should be kept away from the fire source;

3. When moving the Qipu generator, hold the bee waist of the spherical container, and never hold the spherical funnel with one hand, so as not to cause an accident caused by the base falling off;

4. It cannot be used to make acetylene. Because the reaction produces a paste Ca(OH)2, i.e. calcium hydroxide, which blocks the branch nozzle; Calcium carbide (CaC2) reacts violently with water, and it is difficult to control the reaction rate. The reaction will release a lot of heat, and if it is not operated properly, it will explode the Qipu generator;

5. When adding solids to the Qipu generator, you need to use a rubber plug to plug the spherical funnel mouth tightly, and then remove the rubber stopper on the container to add the solid. When the liquid needs to be replaced, the funnel mouth should also be plugged tightly, and then the liquid outlet plug at the bottom of the container should be pulled out to make the waste liquid flow out slowly, and the liquid outlet plug should be plugged before filling the liquid from the spherical funnel mouth. When moving the Qipu generator, you should hold the ball of the container, and you must not only hold the spherical funnel, otherwise it will be separated from the container, causing leakage or damage to the container;

6. The Qipu generator cannot be heated, nor can it be used for strong exothermic reactions and violent gas release reactions;

7. It must be a block solid and liquid, and the reaction of gas that is insoluble in water (or slightly soluble in water) can be prepared without heating;

8. It is advisable to add liquid just to submerge the solid.