Context
• In several, migrant workers travelling to their home states, or their belongings, were sprayed with a disinfectant, apparently to sanitise them. The chemical in the spray was a sodium hypochlorite solution.
About:
• Sodium hypochlorite is commonly used as a bleaching agent, and also to sanitise swimming pools.
• As a common bleaching agent, sodium hypochlorite is used for a variety of cleaning and disinfecting purposes. It releases chlorine, which is a disinfectant.
• The concentration of the chemical in the solution varies according to the purpose it is meant for.
• A normal household bleach (for disinfecting buildings and solid surfaces) usually is a 2-10% sodium hypochlorite solution.
• At a much lower 0.25-0.5%, this chemical is used to treat skin wounds like cuts or scrapes.
• An even weaker solution (0.05%) is sometimes used as a handwash.
• The World Health Organization, and the US Centers for Disease Control and Prevention, recommend homemade bleach solutions of about 2-10% concentration to clean hard surfaces to clear them of any presence of the novel coronavirus.
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