Sodium thiosulfate is used to do what regarding chlorine in water?

Sodium thiosulfate is commonly utilized in water treatment processes for its ability to neutralize chlorine residuals. When chlorine is added to water, it serves as a disinfectant to eliminate harmful pathogens. However, in certain scenarios, it may be necessary to remove or neutralize the chlorine before the water is released into the environment or in applications where residual chlorine might be harmful, such as in fish habitats.

Sodium thiosulfate acts as a reducing agent that reacts with chlorine, effectively converting it into harmless substances. This reaction helps ensure that the water does not carry over chlorine levels that can be detrimental to aquatic life or other sensitive uses. The neutralization process is critical for maintaining water quality and protecting ecosystems when discharging treated water.

Understanding the role of sodium thiosulfate in this context reinforces the importance of managing chlorine levels in water systems and ensures compliance with environmental regulations and standards.