Where to find carbide? What precautions are needed?

Anonim

Where to find carbide? It was this question that all men asked when they were children. Calcium carbide is formed as a result of the interaction of Ca oxide and carbon under high temperature. Often it is left to welders after work.

What does carbide look like?

To determine where to find carbide in the street, you need to know its physical properties. Physically, the substance is solid, its color can be dark, having a grayish or brown tint. Color depends on the amount of carbon. There is also a specific smell that characterizes this substance.

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The consistency of it is hard, but it crumbles easily, turning into a powder. If you bring a match, it will start burning with the release of carbon and the decomposition of calcium. True, this can be achieved at high temperatures, such as a hunting match.

Qualitative reaction

Little knowledge of where to find the carbide, it is necessary to verify the authenticity of the substance. For a qualitative reaction, you need only a little water (you can even use your own saliva on the street). The interaction of CaC 2 results in the release of methane and calcium hydroxide. You can observe the characteristic hiss, and if you bring a match at this moment - ignition.

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Due to the violent reaction with water, the carbide decomposes from atmospheric moisture. Therefore, the question of where to find calcium carbide on the street is highly controversial. It is known that in its pure form it does not exist, this compound is mostly artificial than natural.

Substance use

Calcium carbide is widely used in industry. It is a catalyst in the synthesis of organic compounds. With its help, it became possible to synthesize rubber for a lower price. However, for this, first it is necessary to carry out the necessary chemical reactions for the synthesis of its own carbide, and only then - rubber. More and more chemists are wondering where to find carbide in nature to make their work easier.

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Carbide has found its use in gardening. On its basis, farmers receive a fertilizer called calcium cyanide. It is used to improve the growth of the root system of seedlings and adult plants.

Precautionary measures

CaC 2 is an unstable compound that tends to explode. The fact is that calcium can even react with air, and as a result of the reaction, volatile gases are formed. The slightest spark can cause instant fire with the release of a huge amount of heat and methane, which would entail sad consequences. Therefore, the substance must be transported in sealed containers.

Fans of livehacks and "sharp experiments" with carbide should take care of their own safety. When working with a substance, you should wear special gloves; if you take the carbide with your bare hands, they will not be possible to wash. The reaction with water causes not only methane emissions and heat, so skin burns will be provided.

Is carbide for sale?

The easiest way, where to find carbide, is a specialized hardware store. Now calcium carbide is sold absolutely calmly, though not in all stores it is available. It is worth buying, if it is necessary for business, and not for experiments that can cause permanent injury to the skin.

Interesting Facts

Calcium carbide was first obtained by the famous chemist Edmund Davy. The scientist received it by heating acetic calcium. The result was calcium carbide, but that's not all. The famous chemist noticed that when interacting with water, a colorless explosive gas, odorless, is released. Thus, acetylene was known to all (it is methane or hydrogen carbon). This was one of the great discoveries in the field of organic chemistry, and later gave rise to the production of organic compounds such as rubber, resin, styrene.

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