Where should I dig the vegetable cellar at home?

Near the back wall, in the shade, there is no water. Vegetables stored in the cellar for a long time will produce (carbon dioxide) gas. Because vegetables can breathe, absorb oxygen and release carbon dioxide in the cellar, it takes a while to enter the unopened cellar for a long time. You can't enter directly to avoid danger.

Principle:

Carbon dioxide reacts with oxygen to produce CO2. The molecule of carbon dioxide consists of two oxygen atoms and one carbon atom through valence bond. Carbon dioxide is a colorless, odorless and nonflammable gas at room temperature. Its density is higher than that of air. It is slightly soluble in water and reacts with water to generate carbonic acid.

Extended data:

Precautions in vegetable cellar are convenient to reduce the possibility of suffocation;

(1) All organic substances (including animals and plants) will release CO during decomposition, fermentation, decay and deterioration. .

⑵ During the combustion of petroleum, paraffin, coal and natural gas, carbon monoxide will also be released.

⑶ Oil and coal will also release CO in the process of producing chemical products. .

⑶ All feces and humic acid can also release CO during fermentation and maturation. .

5] All animals breathe oxygen and spit out CO? .