natriumhydrogensulfid

Natriumhydrogensulfid, also known as sodium bisulfide or sodium hydrosulfide, is an inorganic chemical compound with the formula NaHS. It is the sodium salt of the bisulfide anion. Natriumhydrogensulfid is a colorless solid, although it is often encountered as an aqueous solution, which may have a yellow or orange tint due to the presence of polysulfides. It is highly soluble in water and releases hydrogen sulfide gas when exposed to acids.

The production of natriumhydrogensulfid typically involves the reaction of sodium hydroxide with hydrogen sulfide. Alternatively, it can be formed by partially neutralizing sodium sulfide with an acid. This compound plays a significant role in various industrial applications. It is commonly used in the leather industry for hair removal during the tanning process. In the mining industry, it serves as a flotation agent to separate valuable minerals from ore. Natriumhydrogensulfid is also utilized in the production of dyes, as a reducing agent, and in wastewater treatment for the precipitation of heavy metals. Due to its corrosive nature and the release of toxic hydrogen sulfide gas, proper handling and safety precautions are essential when working with this chemical.