Sodium nitrite is not a corrosion inhibitor, but a chemical substance with multiple uses such as anti-corrosion and food additives. Here is some information about sodium nitrite:
Preservatives: Sodium nitrite can be widely used as a preservative in the food industry, especially in the processing of meat products. It can inhibit the growth of bacteria, molds, and other microorganisms, extending the shelf life of food. However, sodium nitrite can react with amine compounds under certain conditions to generate nitrosamines, such as nitrosodimethylamine (NDMA), which may pose a potential carcinogenic risk. Therefore, the use of sodium nitrite in food needs to be controlled in accordance with relevant regulations and limit standards.
Medical applications: Sodium nitrite is also used in the medical field, such as as as an exhaust and sedative in cardiac surgery.
It should be noted that sodium nitrite should not be used as a corrosion inhibitor PBTC in heating pipelines, as it does not possess the properties of corrosion inhibiting metal materials. In heating systems, specialized scale and corrosion inhibitors are usually used to prevent and control scale and metal corrosion in the heating pipeline network. The correct selection and use of suitable corrosion inhibitors are crucial for protecting the safety and normal operation of heating systems. When using any chemical substance, it is recommended to follow relevant regulations and standards, and follow the product manual and professional advice for correct operation.