Is there a chemical that can be put into swimming pools that changes color when somebody pees in the pool?
Many commercial pools use chemicals that detect urine in the water and change the color of the water to alert swimmers and lifeguards. The chemical most commonly used is called sodium fluorescein.
When sodium fluorescein is added to water, it makes the water appear a bright green color. If someone then urinates in the pool, the urine will cause the water to turn a dark blue color. This is because urine contains a chemical called urea, which reacts with sodium fluorescein to produce the blue color.
The use of sodium fluorescein in pools is controversial. Some people argue that it is a useful tool for detecting urine in the water and preventing the spread of waterborne diseases. Others argue that it is an invasion of privacy and that it can be embarrassing for people who accidentally urinate in the pool.
Here are some additional questions and answers about chemicals that can be put into swimming pools to change color when someone pees:
- What other chemicals can be used to detect urine in pools? There are a number of other chemicals that can be used to detect urine in pools, including rhodamine B and fluorescein.
- Are these chemicals harmful to swimmers? The chemicals used to detect urine in pools are not harmful to swimmers in the concentrations that are typically used.
- Can these chemicals be used to detect other substances in pools? Yes, these chemicals can also be used to detect other substances in pools, such as blood and vomit.
- Are these chemicals expensive? The chemicals used to detect urine in pools are relatively inexpensive.
- Where can I buy these chemicals? These chemicals can be purchased from swimming pool supply stores and online retailers.
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