The difference in smell between bleach in a jug and bleach on a mopped floor is primarily due to how the bleach interacts with different substances and its exposure to the environment.
Concentration: Bleach in a jug is typically a more concentrated form of the chemical, which means it contains a higher percentage of the active ingredient, sodium hypochlorite. The higher concentration of bleach in the jug can result in a more distinct and "clean" smell.
Dilution: When you use bleach to mop the floor, it's usually mixed with water to create a solution suitable for cleaning. The dilution of bleach reduces its concentration, and the smell becomes less intense. The added water can also bring out other odors present in the environment or on the floor, making the overall smell seem "rancid" or "gross."
Chemical Reactions: When bleach is applied to surfaces like a floor, it comes into contact with organic materials such as dirt, oils, and other residues. The active components in bleach can interact with these organic substances and form new chemical compounds. Some of these reactions may produce volatile compounds that contribute to the unpleasant smell.
Air Circulation: The smell of bleach in a closed container, like a jug, is confined and concentrated, making it more noticeable but possibly more tolerable. On the other hand, when bleach is applied to a mopped floor in a room with ventilation or air circulation, the smell can spread more widely and mix with other odors, making it seem less pleasant.
Residues: If the floor is not rinsed thoroughly after using bleach, some residue may remain. This residue can interact with dirt and other substances on the floor, creating additional odor-causing reactions over time.
In summary, the difference in smell between bleach in a jug and bleach on a mopped floor is influenced by factors such as concentration, dilution, chemical reactions with organic substances, air circulation, and the presence of residual substances. Proper ventilation and thorough rinsing after using bleach can help minimize the lingering unpleasant smell on mopped floors.