Industry involves the use of various gases which are not usually isolated in the atmosphere. CO2 is one such gas. It is present in the air, but at an extremely low concentration. It forms about 0.05% of the earth's atmosphere. This may seem insignificant, but it is not. CO2 is one of the most important gases in the atmosphere and so using a high pressure CO2 pump involves knowing more about it.
It is not possible to identify CO2 gas by eye or smell, since it has no color or odor. It is sometimes used in a solid state as "dry ice" to keep items cold. Dry ice is not, however, stable in that form and it immediately turns into gas when the container is opened. It is extremely hard to keep dry ice in a solid form.
The CO2 molecule is formed when oxygen and carbon combine. Carbon does not sound like highly flammable material but when it burns it produces carbon dioxide. CO2 comprises two oxygen atoms and one carbon atom.
Carbon dioxide is also formed by trees and other plants through the reverse of photosynthesis at night, in the absence of the sun. During the day, plants perform the process of photosynthesis, during which carbon dioxide is harvested from the atmosphere and converted into oxygen. At night, however, the process is reversed and the plants release CO2. The destruction of forests is a threat to the safe composition of the atmosphere because trees remove large amounts of CO2 from the air.
This means that even though carbon dioxide is present in such a small concentration in the air, it is highly important. It is also potentially lethal because it cannot be used by the human body. It is exhaled together with water vapor when you breathe out. If the air is made up entirely of CO2, it will cause death through asphyxiation instantly.
This property of CO2 is the basis of its use in CA storage (controlled atmosphere storage). In this process, the atmosphere in the storage area is almost totally composed of CO2. This prevents fresh produce from decomposing. The pathogens which cause decomposition require oxygen and cannot function in CA storage. It has been alleged, however, that the nutritional properties of the stored products are not maintained.
Another application of CO2 is in carbonated drinks, or soft drinks. This is obvious and well known, but there is an aspect of this technique that is not advertised and which is not always known to the consumer of these products. CO2 dissolves easily in water to form a weak acid known as carbonous acid (H2CO3). This acid forms and disappears as the fizzy bubbles dissolve and re-evaporate. Leaving a tooth in a soft drink overnight will cause it to dissolve, so that it won't be there the next day.
Carbon dioxide can cause death by suffocation. Those who work with it should therefore be trained in the appropriate safety precautions and the nature of the gas. This is particularly important for those who make use of the high pressure pumps.
It is not possible to identify CO2 gas by eye or smell, since it has no color or odor. It is sometimes used in a solid state as "dry ice" to keep items cold. Dry ice is not, however, stable in that form and it immediately turns into gas when the container is opened. It is extremely hard to keep dry ice in a solid form.
The CO2 molecule is formed when oxygen and carbon combine. Carbon does not sound like highly flammable material but when it burns it produces carbon dioxide. CO2 comprises two oxygen atoms and one carbon atom.
Carbon dioxide is also formed by trees and other plants through the reverse of photosynthesis at night, in the absence of the sun. During the day, plants perform the process of photosynthesis, during which carbon dioxide is harvested from the atmosphere and converted into oxygen. At night, however, the process is reversed and the plants release CO2. The destruction of forests is a threat to the safe composition of the atmosphere because trees remove large amounts of CO2 from the air.
This means that even though carbon dioxide is present in such a small concentration in the air, it is highly important. It is also potentially lethal because it cannot be used by the human body. It is exhaled together with water vapor when you breathe out. If the air is made up entirely of CO2, it will cause death through asphyxiation instantly.
This property of CO2 is the basis of its use in CA storage (controlled atmosphere storage). In this process, the atmosphere in the storage area is almost totally composed of CO2. This prevents fresh produce from decomposing. The pathogens which cause decomposition require oxygen and cannot function in CA storage. It has been alleged, however, that the nutritional properties of the stored products are not maintained.
Another application of CO2 is in carbonated drinks, or soft drinks. This is obvious and well known, but there is an aspect of this technique that is not advertised and which is not always known to the consumer of these products. CO2 dissolves easily in water to form a weak acid known as carbonous acid (H2CO3). This acid forms and disappears as the fizzy bubbles dissolve and re-evaporate. Leaving a tooth in a soft drink overnight will cause it to dissolve, so that it won't be there the next day.
Carbon dioxide can cause death by suffocation. Those who work with it should therefore be trained in the appropriate safety precautions and the nature of the gas. This is particularly important for those who make use of the high pressure pumps.
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