Sodium fluoride, sodium nitrate, 500-1000 ppm, at room temperature, with a alkalinity of 3-4%, can carbon steel be used?
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Sodium fluoride, sodium nitrate, 500-1000 ppm, at room temperature, with a alkalinity of 3-4%, can carbon steel be used?
According to the provided information, the concentrations of sodium fluoride and sodium nitrate are low at room temperature, and the alkalinity is 3-4%. In this case, carbon steel can be considered for use; however, it should be noted that its corrosion resistance may be affected. If there are higher concentrations, temperatures, or more severe corrosive conditions, it is recommended to use materials with better corrosion resistance. It is best to consult professionals and conduct actual tests to determine the appropriate material. .
This post was last edited by Qingchengjun on 2023-6-7 at 15:38. On one hand, reliable public information is sought. On the other hand, the target solution was prepared, and carbon steel materials were placed in it to test corrosion data. Reaping benefits without effort and not approaching professional work with a scientific attitude is an insult to the profession
In solutions containing sodium fluoride and sodium nitrate, the oxidizing substances present can cause corrosion and damage to carbon steel, therefore it is not recommended to use carbon steel for storage or transportation. If carbon steel must be used, it is recommended to choose carbon steel of high quality with strong corrosion resistance, and to apply protective measures such as galvanizing or spraying latex on its surface. In addition, certain measures need to be taken to reduce the damage caused by oxidizing substances to carbon steel. For example, any impurities in the solution should be removed as much as possible before use, the acidity and concentration of the solution should be controlled, and an appropriate amount of corrosion inhibitor should be added to the solution