In chemistry, rust is defined as a compound made up of an oxygen atom and an atom of another element (sodium, calcium, iron, etc.). Oxides can be found in different forms: solid, liquid and gas, as well as at room temperature. Oxides with only one oxygen atom are known as monoxides, those with two atoms are called dioxides, and so on.

According to their chemical behavior, oxides can be classified into:

  • Basic oxides: it is composed of a metal plus an oxygen.
  • Acid oxides: they are composed of a non-metal plus an oxygen.
  • Amphoteric oxides: are those composed of an amphoteric element. This type of oxide can act as an acid or base, depending on who they are reactivated with.

For its part, carbon oxide, better known as carbon dioxide, is a gas that does not have any color or smell and is usually released during combustion, respiration and certain fermentations. This is made up of the combination of a simple radical or a pair of oxygen atoms. Carbon dioxide is in charge of regulating the global warming of the earth and that, through the greenhouse effect, helps the planet to have a bearable temperature for biomass.

Nitrogen oxide is a gaseous chemical compound made up of a mixture of oxygen and nitrogen. It is characterized by being a colorless gas with low solubility in water. This gas has narcotic properties; Therefore, it is used very frequently in the field of dentistry. However, it is important to mention that nitrogen oxide can cause health damage, since it can cause damage to the respiratory tract and lungs.

At present, the presence of nitrogen oxide has been increasing significantly, causing the formation of the hole found in the ozone layer.

It is important to mention that in everyday jargon, this term is frequently used to refer to the physical or mental wear and tear that a person may experience. For example, when a person is not used to exercising and gets to do it, he may have a lot of muscle pain, so he would say that he is “rusty”.