Nitrite

Nitrite is an inorganic compound with the chemical formula NO₂⁻. It is a polyatomic ion and a salt of nitrous acid. Nitrites are used in the food industry for the curing of meat products and in the medical field for the treatment of heart conditions.

Chemical Properties

Nitrites are salts of nitrous acid and contain the nitrite ion. They are typically unstable and reactive, especially under acidic conditions. Nitrites can be produced by the oxidation of nitrogen oxides or by the reduction of nitrate.

Uses

Food Industry

In the food industry, nitrites are commonly used as food preservatives, particularly in the curing of meats. They help to prevent the growth of bacteria and give cured meats their characteristic pink color. However, there has been some controversy over their use due to potential health risks.

Medical Field

In the medical field, nitrites are used in the treatment of angina and other heart conditions. They work by relaxing the muscles in the walls of the arteries, allowing more blood to flow to the heart.

Health Risks

While nitrites are useful in many applications, they also pose potential health risks. High levels of nitrites can lead to methemoglobinemia, a condition in which the body's hemoglobin is unable to carry oxygen effectively. There is also some evidence to suggest that nitrites may be carcinogenic.

See Also

• Nitrate
• Nitrous Acid
• Food Preservation
• Angina

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