Which of the following is NOT a chemical disinfectant?

Sodium chloride, commonly known as table salt, is not classified as a chemical disinfectant. Unlike the other substances listed, sodium chloride does not possess the properties necessary to effectively kill or inhibit the growth of pathogens.

In contrast, iodine is widely recognized for its disinfectant properties and is often used as a topical antiseptic. Calcium hypochlorite is a chemical compound that releases chlorine when dissolved in water, making it an effective disinfectant for water treatment and sanitation. Bromine also serves as a disinfectant, particularly in swimming pools and hot tubs, due to its ability to eliminate bacteria and other microorganisms.

Thus, sodium chloride stands out among the given options, as it primarily serves culinary purposes and does not have the antimicrobial effects characteristic of disinfectants.