Sodium nitrite (NaNO2) is a chemical compound used as a food preservative and curing agent. It is a white to slightly yellowish crystalline powder with a salty taste.

Salt (NaCl), also known as sodium chloride, is a common table salt. It is a white crystalline compound that is primarily used for seasoning and flavoring food.

Key Differences:

* Chemical composition: Sodium nitrite has a different chemical formula (NaNO2) than salt (NaCl).

* Function: Sodium nitrite is a food preservative, while salt is primarily used for flavoring.

* Health effects: Sodium nitrite is generally considered safe in small amounts, but excessive consumption can be harmful. Salt is essential for human health, but too much can be detrimental.

* Taste: Sodium nitrite has a slightly salty taste with a hint of bitterness. Salt has a distinct salty taste.

In summary, sodium nitrite and salt are distinct chemical compounds with different properties, uses, and health effects.