ezüsthidroszulfid

Ezüst hidroszulfid is the chemical compound with the formula AgHS. It is a salt composed of the silver cation (Ag+) and the hydrosulfide anion (HS-). It is a solid compound that is typically white or off-white in appearance. The solubility of silver hydrosulfide in water is very low, making it practically insoluble. It can dissolve in concentrated solutions of sodium or potassium hydroxide, forming complex ions.

Silver hydrosulfide is closely related to silver sulfide (Ag2S), which is a much more stable and common compound. Silver hydrosulfide can be formed by the reaction of silver ions with hydrosulfide ions, or by the partial reaction of silver sulfide with acids. Its formation is often associated with the tarnishing of silver, where sulfur compounds in the air react with the silver surface.

The compound has limited practical applications due to its instability and low solubility. It is primarily of interest in chemical research and in understanding the chemistry of silver and sulfur compounds. Its properties are similar to other metal hydrosulfides, exhibiting a degree of acidity due to the presence of the hydrogen atom in the hydrosulfide anion.