Sodium chloride is a common inorganic compound with the chemical formula NaCl. In daily life, it is widely used in food processing, medical treatment, environmental protection and other aspects.

Sodium chloride is the main component of common table salt. What we usually call "table salt" refers to sodium chloride. Table salt is one of the essential nutrients for the human body. It contains the sodium element required by the human body and plays an important role in maintaining normal electrolyte balance and physiological functions in the body.

Sodium chloride is also widely used as a condiment in food processing. Adding table salt can improve the taste of food, increase appetite, regulate the pH value of food, and extend the shelf life of food. However, it should be noted that excessive intake of table salt may cause health problems such as high blood pressure and heart disease, so table salt should be used in moderation in daily diet.

Sodium chloride is also widely used in the medical field. Because of its bactericidal and anti-inflammatory effects, it is often used to disinfect wounds and sterilize instruments. At the same time, sodium chloride can also be used as a basic solution for infusion to supplement the missing electrolytes in patients.

In terms of environmental protection, sodium chloride also plays an important role. For example, it is often used to melt ice and snow, clear snow from roads and sidewalks, and provide driving safety. In addition, in some areas, sodium chloride is also commonly used in water treatment processes to purify water quality.

In short, as a common inorganic compound, sodium chloride plays a variety of roles in daily life. Whether in food processing or medical applications, it has important functions and significance. However, we should also pay attention to using it in moderation to avoid adverse effects on health caused by excessive intake.