What Is Sodium Hydrogen Sulfide?
Sodium hydrogen sulfide, represented by NaSH, is a sodium salt of hydrogen sulfide. Known also as sodium hydrosulfide, it is primarily available as an aqueous solution and is marked by CAS number 16721-80-5. Despite its nonflammability, it can produce hazardous gases when heated or in contact with acids.
Uses of Sodium Hydrogen Sulfide
Utilized extensively as a raw material in various sectors, sodium hydrogen sulfide’s applications span synthetic resins, dye materials, desulfurization processes, and flotation beneficiation in copper mining. It serves as an intermediate for dyes, dehairing leather, and desulfurizing viscose rayon, and has been investigated as an all-solid-state battery component.
Properties of Sodium Hydrogen Sulfide
This compound exists as a grayish-white solid, emitting a hydrogen sulfide odor. Soluble in water, ether, and alcohol, it’s known to spontaneously ignite in air around 40°C, with a density of 1.79 g/mL.
Types of Sodium Hydrogen Sulfide
Sold for industrial and research purposes, sodium hydrogen sulfide is most commonly provided as n-hydrate, accommodating various laboratory and industrial needs with different packaging sizes and purity levels.
Other Information on Sodium Hydrogen Sulfide
1. Synthesis of Sodium Hydrogen Sulfide
Its synthesis can involve saturating sodium hydroxide solution with hydrogen sulfide or reacting sodium methoxide with hydrogen sulfide, catering to laboratory preparations.
2. Chemical Reaction of Sodium Hydrogen Sulfide
A reducing and corrosive agent, sodium hydrogen sulfide undergoes decomposition in air, yielding various sodium compounds and releasing hydrogen sulfide upon contact with acids. Its analysis often employs iodine reduction titration based on its reductive capability.
3. Regulatory Information on Sodium Hydrogen Sulfide
Identified as a hazardous substance, proper labeling, notification, and risk assessment are mandated for its handling, underscoring the importance of adhering to safety regulations.