Views: 0 Author: Site Editor Publish Time: 2024-09-03 Origin: Site
Speaking of “sodium nitrite”
I believe you have heard of it for a long time
As a kind of industrial salt
Its appearance is similar to table salt
With good rust prevention effect on ferrous metals
Deeply rooted in the field of metal working fluids
Gained a lot of people's favor
In-depth understanding of sodium nitrite
Sodium nitrite is an inorganic salt formed by the combination of nitrite ions and sodium ions. Sodium nitrite is easily deliquescent, soluble in water and liquid ammonia, its aqueous solution is alkaline, slightly soluble in ethanol, methanol, ether and other organic solvents. Sodium nitrite has a salty flavor and is sometimes used to make fake table salt. Sodium nitrite reacts with oxygen to form sodium nitrate when exposed to air.
Sodium nitrite has many interesting properties and uses and is widely used in industry!
Important oxidizing agent
Industrial Na nitrite is an important oxidizing agent that reacts with many substances to induce the transfer of oxygen, e.g. in the preparation of dyes and pigments, and in the synthesis of certain organic compounds.
Metal surface treatment
Widely used in the treatment and protection of metal surfaces; it can be used as one of the components of metal corrosion inhibitors, forming a protective oxide film that prevents the metal from further oxidation and damage, making the metal more durable and extending its service life.
It is worth mentioning that the blackening treatment of metal, which is a kind of surface anti-corrosion treatment, also called bluing treatment, in which the commonly used strong oxidizing agent needs to use sodium nitrite; in addition, in the production of alkaline degreasing agent, sodium nitrite is added into the alkaline degreasing agent has two functions: to reduce the alkalinity, and the rust prevention effect on the steel parts.
Water treatment
It is understood that in the process of water treatment, industrial sodium nitrite can also react with chloride to reduce or remove residual chlorine in the water, thereby improving water quality to better protect the water environment.
Construction field
In addition, Sodium Nitrite is often used as a concrete admixture in the construction industry to promote concrete solidification, improve its strength, and prevent concrete from freezing during construction at low temperatures in winter.
Others
In addition, it can also be used as bleaching agent for silk and linen, heat treatment agent for metal, corrosion inhibitor for steel, antidote for cyanide poisoning, laboratory analytical reagent, and has applications in bleaching, electroplating and metal treatment.
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