Sodium nitrite (nanometer? ) is an inorganic salt formed by the combination of nitrite ion and sodium ion. Sodium nitrite is easily deliquescent, soluble in water and liquid ammonia, and its aqueous solution is alkaline, slightly soluble in organic solvents such as ethanol, methanol and ether.

Sodium nitrite has a salty taste and is sometimes used to make fake salt. When sodium nitrite is exposed to air, it will react with oxygen to produce sodium nitrate. If heated above 320℃, it will decompose to produce nitrogen dioxide, nitric oxide and sodium oxide. Contact with organic matter is easy to burn and explode.

Sodium nitrite can enhance and protect the color, keep the bright color of food and prevent the color of food from changing from dark to light. Can play a role in bacteriostasis and antisepsis, and inhibit botulinum.

Use of sodium nitrite

1, some silks, satins and flax all use sodium nitrite as bleaching solution, which can be used as desulfurizer for stainless steel plates.

2. Sodium nitrite is also used as colorant and preservative in meat processing.

3. Sodium nitrite can be used for antirust treatment of thick steel plate because of its partial alkali reaction.

4. Sodium nitrite is a food preservative, which plays the role of coloring and antisepsis and is widely used in cooked meat, canned sausage and canned fruit.

Refer to the above content: Baidu Encyclopedia-Sodium Nitrite