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Wear gloves when using bleach !
Bleach is an ordinary product, widely used in the household. It contains sodium hypochlorite (NaOCl), as well as sodium chloride (NaCl or "kitchen" salt), soda (NaOH) and water (H2O). Sodium hypochlorite is the source of "active" chlorine, but in certain commercial forms, the hypochlorite is replaced by another source of active chlorine (sodium dichloroisocyanurate, for example). Domestic applications of bleach are well known : stain remover, whitening agent, disinfectant.
However, bleach is not harmless. Particularly concentrated in berlingot, it is corrosive and causes chemical burns. It is also dangerous for the environment and produces poisonous gas emissions when it comes into contact with acids. Indeed, when bleach is mixed with acid, it forms chlorine (Cl2), a toxic gas that is irritating to the eyes, respiratory tract and skin. It was actually used during the First World War as a weapon, under the name Bertholite.
Descaling of sanitary facilities is often carried out using acidic products : insoluble calcium carbonate turns into calcium bicarbonate, highly soluble in water. The descaling of sanitary facilities must be followed by thorough rinsing before performing any disinfection with bleach so as to avoid the formation of chlorine. One understands that in confined spaces such as the toilets, chlorine emissions can have serious consequences !
Generally speaking, the rules to be observed are :
- Keep out of reach of children,
- Do not transfer into a bottle other than the one provided by the manufacturer,
- Do not keep stocks of berlingots,
- Never mix with other household products,
- Handle using household gloves.
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