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Name: Wolf Wolfstar
Status: Educator
Age: 40s
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Question:
Is a 1:100 dilution of 5.25% sodium hypochlorite and water a good broad spectrum disenfectant that can be used in commercial settings?



Replies:
First of all a few definitions: Antiseptics are microbicidal agents harmless enough to be applied to the skin and mucous membrane; should not be taken internaslly. Examples: mercurials, silver nitrate, iodine solution, alcohols, detergents.

Disinfectants are agents that kill microorganisms, but not necessarily their spores,not safe for application to living tissues; they are used on inanimate objects such as tables, floors, utensils, etc. Examples: chlorine, hypochlorites, chlorine compounds, lye, copper sulfate, quaternary ammonium compounds.

Sodium hypochlorite is the most widely used antimicrobial active chlorine compound in chemical disinfection.

The concentration you mention, 0.05%, corresponds to 0.5 g/l. This concentration is sufficient for bactericidal action, but the time required depends on the concentration.

As far as I know hypochlorite is commercially available for disinfectant purposes. It is frequently used in dentistry. It is not applied as an antiseptic (to desinfect skin) because it is not harmless.

Trudy Wassenaar



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