Sodium bisulfide
Terminology and Properties
In addition to the primary common name "acid sodium sulfide", sodium hydrosulfide may also be called sodium bisulfide in certain industrial fields or regions. This name directly reflects its molecular composition: it consists of sodium ions (Na⁺) and hydrogen sulfide ions (HS⁻). However, "sodium bisulfide" is not as widely recognized or commonly used as "acid sodium sulfide" in daily practice.
To fully understand these common names, let’s briefly review the basic properties of sodium hydrosulfide. It is an inorganic compound with the formula NaHS. Under standard temperature and pressure, it typically appears as colorless needle-like crystals, or as pale yellow to gray lumps, flakes, or powders. Pure sodium hydrosulfide is deliquescent, soluble in water and alcohols, and its aqueous solution is prone to oxidation and deterioration when exposed to air. These physical and chemical characteristics also explain why it is called "acid sodium sulfide": its chemical behavior indeed lies between sodium sulfide and hydrogen sulfide, with a certain "intermediate" character.
To fully understand these common names, let’s briefly review the basic properties of sodium hydrosulfide. It is an inorganic compound with the formula NaHS. Under standard temperature and pressure, it typically appears as colorless needle-like crystals, or as pale yellow to gray lumps, flakes, or powders. Pure sodium hydrosulfide is deliquescent, soluble in water and alcohols, and its aqueous solution is prone to oxidation and deterioration when exposed to air. These physical and chemical characteristics also explain why it is called "acid sodium sulfide": its chemical behavior indeed lies between sodium sulfide and hydrogen sulfide, with a certain "intermediate" character.
Zibo Anhao Chemical Co., Ltd.
Zibo Anhao Chemical Co., Ltd. specializes in supplying high-grade Sodium Hydrosulfide with steady quality and stable performance. Our products are available in various concentrations, featuring high purity, few harmful impurities and strong reaction activity.
This essential industrial chemical is extensively adopted in mineral flotation separation, leather processing, dye production, environmental sewage treatment and chemical raw material manufacturing. We adopt tight multi-layer packaging to perfectly prevent leakage, dampness and quality change during long-distance shipping.
Equipped with complete qualification certificates and professional export service system, we ensure timely shipment and standardized cargo arrangement. We always adhere to reasonable pricing and sincere cooperation, aiming to provide reliable chemical raw material solutions for global industrial clients.
This essential industrial chemical is extensively adopted in mineral flotation separation, leather processing, dye production, environmental sewage treatment and chemical raw material manufacturing. We adopt tight multi-layer packaging to perfectly prevent leakage, dampness and quality change during long-distance shipping.
Equipped with complete qualification certificates and professional export service system, we ensure timely shipment and standardized cargo arrangement. We always adhere to reasonable pricing and sincere cooperation, aiming to provide reliable chemical raw material solutions for global industrial clients.





