Javel water (aqueous solution)
only stable in aqueous solution
|External identifiers / databases|
|Molar mass||90.55 g mol −1|
miscible with water
|As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .|
Extraction and presentation
When the concentrated solution cools to −10 ° C, crystalline hydrate separates out, which is very reactive and has a fire-promoting effect.
Potassium hypochlorite can only be stored in an aqueous solution and in this form has a yellow-green color. The aqueous solution has a strongly alkaline reaction. The compound decomposes on heating, liberating chlorine compounds such as hydrogen chloride.
Diluted solutions are sold as Eau de Javel ( Javel water ). These are used for bleaching , oxidizing or, because of its antimicrobial effect, for disinfecting . It is also used to detoxify wastewater containing cyanide.