We know 1% sodium hypochlorite solution is being used as disinfectant during this COVID 19 pandemic. Here are the ways to prepare this solution.
|Product||Available Chlorine||1 percent|
|Sodium hypochlorite – liquid bleach||3.5%||1 part bleach to 2.5 parts water|
|Sodium hypochlorite – liquid||5%||1 part bleach to 4 parts water|
|NaDCC (sodium dichloro-isocyanurate) powder||60%||17 grams to 1 litre water|
|NaDCC (1.5 g/ tablet) – tablets||60%||11 tablets to 1 litre water|
|Chloramine – powder||25%||80 g to 1 litre water|
|Bleaching powder||70%||7g to 1 litre water|
|Any other||As per manufacturer’s instructions|
Among these, adding 7 gm bleaching powder to 1 litre water is probably the cheapest way.