Sodium nitrite
Sodium Nitrite
Sodium nitrite (pronounced /ˈsoʊdiəm ˈnaɪtraɪt/) is an inorganic compound with the chemical formula NaNO2. It is a useful compound in a variety of applications, including food preservation, dye production, and as a component in medical treatments.
Etymology
The term "sodium nitrite" is derived from the Latin natrium, meaning "sodium", and the Greek nitron, meaning "native soda". The "-ite" suffix indicates a lower oxidation state, distinguishing it from sodium nitrate.
Uses
Sodium nitrite is commonly used as a food preservative and color fixative in cured meats and fish. When used as a preservative, sodium nitrite helps to prevent the growth of bacteria, including Clostridium botulinum, which can cause botulism.
In the medical field, sodium nitrite is used in the treatment of cyanide poisoning. It works by oxidizing the hemoglobin in red blood cells to methemoglobin, which can bind to cyanide and form cyanmethemoglobin, thereby detoxifying the cyanide.
Related Terms
- Sodium nitrate: A related compound with similar uses, but a higher oxidation state.
- Preservative: A substance used to prevent the growth of bacteria and other microorganisms.
- Cyanide poisoning: A form of poisoning that results from exposure to a compound that produces cyanide ions when dissolved in water.
Health Risks
Excessive consumption of sodium nitrite can lead to health problems, including methemoglobinemia, a condition in which an abnormal amount of methemoglobin is produced, reducing the blood's ability to transport oxygen.
See Also
External links
- Medical encyclopedia article on Sodium nitrite
- Wikipedia's article - Sodium nitrite
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