Chlorine's role in water treatment is pivotal due to its oxidizing properties, forming acids that disinfect and control pathogens. While effective, chlorine can create harmful byproducts, prompting safety guidelines. Its reactions with alkalis and metals are significant, as is its historical contribution to public health, despite environmental concerns.
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Chlorine is a chemical element with the symbol Cl and atomic number 17
Chloride Ion
When chlorine gains an electron, it forms the chloride ion (Cl-), which has an oxidation state of -1
Hypochlorite Ion
The hypochlorite ion (ClO-) has an oxidation state of +1 and is formed when chlorine is bonded to an oxygen atom
Chlorine undergoes a chemical reaction with water to form hydrochloric acid (HCl) and hypochlorous acid (HClO), which is an effective disinfectant
Chlorine is extensively used in water treatment due to its potent oxidizing capabilities
Chlorine disinfection involves the diffusion of chlorine and hypochlorous acid through microorganism cell walls, leading to their inactivation
Chlorine can react with natural organic matter in water to form disinfection byproducts, which can have health risks
In the presence of ultraviolet light, chlorine can form chlorine monoxide radicals, which contribute to the depletion of the stratospheric ozone layer
Chlorine has had a profound impact on public health through its use in water treatment systems to control the spread of waterborne diseases
The challenge is to balance the health benefits of chlorine's disinfectant properties with the mitigation of its potential environmental and health risks
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Chlorine atomic number
17
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Chlorine natural state at room temperature
Greenish-yellow diatomic gas (Cl2)
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Chlorine's group in periodic table
Halogens
