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[Chemical Knowledge]：The difference between chloride and chloride ion and its application field

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Chlorine and chloride ion are common concepts in chemistry. Although they are different in name, they actually refer to the same chemical substance, namely chloride ion (Cl-). The chloride ion is formed by the loss of an electron from a chlorine atom and therefore carries a negative charge. According to the positive and negative charge, ions can be divided into cations and anions, and chloride ions belong to the category of anions. Chloride

refers to a radical ion composed of chlorine atoms, and its chemical formula is ClO3-. Chloride ion is an oxygen hybrid ion, which is composed of a chlorine atom and three oxygen atoms. Chloride ions often exist in the form of chlorate ions in chemical reactions, such as chlorite ion (ClO2-) and perchlorate ion (ClO4-), which play an important role in many redox reactions.

chloride ions have important applications in environmental science and water treatment. Chloride ion can be used as a water treatment agent, mainly for disinfection and sterilization. In the process of water treatment, chloride ions can chemically react with bacteria and viruses to destroy their cell structure, thus playing a role in sterilization and disinfection. In addition, chloride ions can also be used in wastewater treatment and sewage treatment, which can remove organic matter and heavy metal ions in water. Chloride ion

is a kind of anion which widely exists in nature and organisms. In seawater, chloride ion is one of the main inorganic ions, which forms salt with sodium ion. In living organisms, chloride ions participate in the acid-base balance inside and outside the blood and cells to maintain normal physiological functions. In addition, chloride ions are involved in biological processes such as nerve conduction and muscle contraction.

To sum up, chloride and chloride ions refer to the same chemical substance-chloride ions. Chloride ion is a special form of chloride ion, which plays an important role in chemical reactions and applications. Understanding the characteristics and applications of chlorine and chloride ions will help us to better understand and apply this important chemical.

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