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Difference between Bromine and Chlorine

Difference between Bromine and Chlorine

When it comes to the pool and spa industry, many people mistakenly believe that all sanitizers used to keep the water clean are the same. This simply isn’t true, however; while bromine and chlorine both achieve a similar result – keeping your pool or spa safe from bacteria and other contaminants – there are some striking differences between these two popular sanitizing agents. In this blog post, we’ll take a close look at bromine vs chlorine so you can make an informed decision about which one is right for you when sanitizing your own backyard oasis!

What is Bromine?

  • Bromine, the chemical element with atomic number 35, is part of the halogen family and is found in nature as a deep reddish-brown liquid. Bromine is used in many products from fire extinguishers to medicines – Brominated Flame Retardants, for example, are commonly used in all types of materials to decrease flammability.
  • Bromide salts have antiseptic properties and can be found in some contact lens solutions and toothpaste. Bromine itself does not occur naturally as an element except for trace amounts that are present in seawater; the majority it is produced synthetically by combining chlorine gas with sodium bromide.
  • Bromine has uses that range from medical treatments to fire protection and beyond – it plays an essential role in everyday life but at the same time carries potential health risks that should be taken into account.

What is Chlorine?

  • Chlorine (Cl) is a chemical element found in the halogen group that has been studied and used for centuries due to its incredible ability to purify water and disinfect wounds.
  • Chlorine is naturally present in both ocean and underground salt water, making it very abundant in nature. It has elements of both silver and yellow-green color and carries a strong odor, so it is often combined with other chemicals to reduce its smell and become more effective while still preserving the vital benefits it offers.
  • Chlorine can be found in industrial-grade products like cleaning supplies, swimming pool treatments, certain plastics, laundry detergents, and more; ultimately providing unmatched sanitary results with preferred outcomes. Chlorine continues to be an invaluable resource for researchers given its many practical applications.

Difference between Bromine and Chlorine

Bromine and Chlorine are two elements commonly found in nature and often used for industrial purposes.

  • Bromine is a halogen element with a deep reddish-brown color whereas Chlorine has a distinct green hue to it. Bromine is more reactive than chlorine due to having two extra electrons in its valence shell, which makes them highly soluble in organic solvents.
  • Moreover, Bromine has an atomic weight of 79.9 while Chlorine has an atomic weight of 70.9. Bromide, a form of Bromine, can be analyzed by ion chromatography while Chloride cannot; however, it can be detected using titration.
  • Bromide is contained in numerous household products such as bathroom cleaners and body wash, while chlorine is primarily used as a bleaching agent or disinfectant to purify water supplies or swimming pools.

Despite their similarity, Bromine and Chlorine have distinct properties that make them suitable for different uses.


Bromine is a chemical element with the symbol Br, and atomic number 35. It is a halogen. Chlorine is a chemical element with the symbol Cl, and atomic number 17. It also is a halogen. Bromine is found naturally in underground springs whereas chlorine occurs primarily as the chloride ion (Cl−) in seawater and other mineral waters. Bromide salts are used as disinfectants in hot tubs and pools because they hypochlorite when added to water This means that brominated pool or spa water takes longer to develop objectionable chloramines than chlorinated water

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