Sodium Nitrite

IUPAC Name

:   Sodium Nitrite

Cas Number

:   7632-00-0

HS Code

:   2834.10.00

Formula

:  

NaNO2

Basic Info

Appearance Name

:   White or slightly yellowish crystalline powder

Common Names

:   Nitrous Acid, Sodium Salt

Packaging

: 25 Kg Bag

Interested in this product?

For more detailed information including pricing, customization, and shipping:

Technical Document

Brief Overview

Sodium nitrite is an inorganic compound with the chemical formula NaNO2 and is the sodium salt of nitrous acid HNO2. It forms white to slightly yellowish crystalline powder in the pure state. Sodium nitrate is hygroscopic and very soluble in water. It can be found in nature in several vegetables, such as spinach, parsley, lettuce, broccoli, curly kale, and asparagus. It also can be found in the human body to control bacteria in the stomach and prevent gastroenteritis.

Manufacturing Process

The manufacturing process of sodium nitrite is by reacting sodium hydroxide with nitrogen dioxide and nitrogen monoxide. The product of this reaction is sodium nitrite and water. Sodium carbonate also can use as a sodium hydroxide substitute. The overall reaction of manufacturing sodium nitrite is shown below:
 2NaOH + NO2 + NO → 2NaNO2 + H2O

The manufacturing process of sodium nitrite comprises the steps:

1. Absorption of nitrogen oxide in sodium hydroxide or sodium carbonate liquid

Nitrogen dioxide and nitrogen monoxide can be obtained from the manufacturing process of ammonia. It is preferable to use excess nitrogen oxide than nitrogen dioxide to increase the production of sodium nitrite and minimize the production of sodium nitrate. The absorption reaction of nitrogen dioxide and nitrogen monoxide in sodium hydroxide produces a sodium nitrite solution.

2. Evaporation

Sodium nitrite solution that obtained and then being cooled to crystallize. The product is suspensions that contain solid crystalline sodium nitrite in water. To increase the concentration, the suspension is heated until containing water evaporates. The evaporation process separates crystalline sodium nitrite from the mother liquor.

Related Products Chemtradeasia

How can we assist you?

-->