There are different chemical substances in the industry that can cause corrosion in your facilities. Many times we are unaware that there are effective solutions to prevent corrosion of our piping systems, such as internal coatings.
In this article we explain which are some of the highly corrosive substances that can damage your equipment and cause breakages that, consequently, cause accidents and production failures. If you manage any of the mentioned in your company, it is necessary that you be cautious and know the solutions that SIESA offers.
Hydrochloric acid
With the formula HCl, and also known as muriatic acid or etching, it is commonly extracted from sea salt, or during the burning of certain plastics. It is extremely corrosive and has a pH lower than 1, which is why it is used as a solvent, as an industrial solvent or as a catalyst to obtain other chemical substances.
Nitric acid
Of formula HNO3, is a viscous liquid commonly used as a reagent in the laboratory, as it is part of the elements that make up Trinitrotoluene (TNT) or various fertilizers such as ammonium nitrate. It can also be found dissolved in acid rain, a known environmental phenomenon consequence of water pollution.
Sulfuric acid
Its formula is H2SO4 and it is one of the most elaborate products in the entire world, since it is often used to obtain fertilizers, or to synthesize acids, sulfates or even in the petrochemical industry. It is also useful in the steel industry and in the manufacture of all types of batteries.
Acid formic
Known as methanoic acid and with the formula CH2O2, is the simplest of the organic acids, often secreted by insects such as the red ant (rufous formica) or bees as a toxic defense mechanism. It is also produced by nettles, or in acid rain due to atmospheric pollution. In small quantities it can cause minor irritations, but despite being of natural origin it is a strong corrosive.
concentrated acetic acid
Named methylcarboxyl acid or ethanoic acid and chemical formula C2H4O2, is the acid in vinegar, which gives it its characteristic sour taste and smell. It is also an organic acid, like formic, but it is extremely weak so its applications are varied and with less risk. Even so, at very high concentrations it could be dangerous for piping systems.
Zinc Chloride
Zinc chloride (ZnCl2) is a more or less white and crystalline solid, very soluble in water, with wide applications in the textile industry and as a laboratory catalyst. It is not particularly toxic, but it reacts exothermically in the presence of water (even water in ambient air) and can be particularly corrosive, especially to cellulose and silk.
Aluminum chloride
Of formula AlCl3, it is a compound that has acidic and basic properties at the same time, depending on what it is diluted in. He is a poor electrical conductor and it has a low melting and boiling point, which is why it is used in chemical processes as a reaction catalyst, in wood preservation or in oil cracking. Exposure to this compound is extremely harmful to metals, even stainless steel.
Boron trifluoride
Its formula is BF3 and is a colorless toxic gas that forms white clouds in humid air. It is frequently used in the laboratory as Lewis acid and in obtaining other compounds with boron. It is a very strong metal corrosive, which in the presence of humidity can eat away at stainless steel.
sodium hydroxide
Caustic soda or caustic soda, with the formula NaOH, exists as white, odorless crystalline solids, whose dissolution in water or an acid generates large amounts of heat. It is used in more or less pure percentages in the paper, textile and detergent industries, as well as in the oil industry.
Potassium hydroxide
Known as caustic potash and with the chemical formula KOH, it is a highly desiccating inorganic compound, whose natural corrosiveness is used in applications as a fat saponifier (in the production of soap). Its dissolution in water is exothermic, that is, it generates heat energy.
sodium hydride
With the formula NaH, it is a very slightly soluble substance of transparent color, classified as a strong base. In addition to that, it is a powerful desiccant, since it stores enormous amounts of hydrogen, making it highly caustic and used as a solvent.
What substances cause corrosion? Second part…
Source: https://www.ejemplos.co/20-ejemplos-de-sustancias-corrosivas/#ixzz5w7QyCJvq