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Hebei Jushi Environmental Protection Equipment Co., Ltd.
Contact: Manager Mao
Phone: 0318--8386866
Fax: 0318--8386866
Mobile: 13784857751
Email: 496438629@qq.com
Address: No. 98 Chuangye Road, Zaoqiang County, Hengshui City, Hebei Province
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Dilute sulfuric acid corrosion principle
The principle of dilute sulfuric acid corrosion
The corrosion process of carbon steel in sulfuric acid is a typical electrochemical corrosion. The nature, surface state of metal materials, and metal cathode phase impurities, pH, and temperature all affect the metal's hydrogen depolarization corrosion. Commercially obtained sulfuric acid is generally at the following concentrations: 77.67%, 93%, 98%, 99%, 100%. The sulfuric acid with different concentrations has the following prominent characteristics:
At a certain temperature, the corrosion rate of dilute sulfuric acid on carbon steel increases with increasing concentration; after reaching a certain concentration, the corrosion rate decreases sharply with increasing concentration. Another feature of sulfuric acid corrosion is that the sulfuric acid of the same concentration will greatly increase with increasing temperature. In addition to the corrosiveness of sulfuric acid, which is related to concentration and temperature, impurities in the acid also have a great effect on corrosion. In addition, some physical factors such as media flow rate, solid phase particles, scaling, etc. also affect corrosivity.
Hebei Jushi
Copyright: Hebei Jushi Environmental Protection Equipment Co., Ltd. Mobile phone: 13784856751 Phone: 0318--8386866 Fax: 0318--8386866 Address: No. 98, Chuangye Road, Zaoqiang County, Hengshui City, Hebei Province Recommended Products: FRP water tank | FRP grille | hydrochloric acid storage Tank technical support: Cangzhou Xianyue Network QQ79471598