Sodium Hydrosulfide CAS#16721-80-5
Versatile Industrial Use: Sodium hydrosulfide (CAS#16721-80-5) is a valuable raw material used in various industrial applications, including metal extraction, leather processing, and chemical synthesis.
Strong Alkalinity: The aqueous solution of sodium hydrosulfide is strongly alkaline, making it effective in various chemical reactions and processes.
Hygroscopic Properties: Its hygroscopic nature allows it to easily absorb moisture, ensuring efficient use in different applications, especially in environments with fluctuating humidity.
Odor Profile: Sodium hydrosulfide has a distinctive hydrogen sulfide odor, which helps to identify its presence and ensure proper handling and safety protocols during use.
Sodium hydrosulfide (CAS#16721-80-5), commonly referred to as sodium hydrosulfide, is a colorless crystal in its pure state. However, industrial-grade products typically appear as light gray or light yellow solids, either in blocky, granular, or powdered forms, due to the presence of impurities. This compound is hygroscopic and has a characteristic hydrogen sulfide odor. When dissolved in water, its solution is highly alkaline and can react with acids to release toxic hydrogen sulfide gas.
Parameters
Melting point | 55°C |
density | 1,79 g/cm3 |
RTECS | WE1900000 |
Fp | 90°C |
solubility | soluble in H2O, EtOh, ethyl ether |
form | Solid |
color | Off-white |
Odor | Rotten eggs odor |
Water Solubility | 620 g/L (20 ºC) |
Sensitive | Moisture Sensitive & Hygroscopic |
Stability: | Stable, but hygroscopic. Flammable solid. May ignite in air. |
CAS DataBase Reference | 16721-80-5(CAS DataBase Reference) |
EPA Substance Registry System | Sodium hydrosulfide (16721-80-5) |
Safety Information
Hazard Codes | C,F |
Risk Statements | 31-34 |
Safety Statements | 25-36/37/39-45-50A |
RIDADR | 2318 |
TSCA | Yes |
HazardClass | 4.2 |
PackingGroup | II |
Hazardous Substances Data | 16721-80-5(Hazardous Substances Data) |
Sodium Hydrogen sulfide is utilized in various industries, including paper pulping, dye processing, rayon and cellophane desulfurizing, and the unhairing of hides. It serves as a bleaching agent in the textile, paper, pulp, and dye industries. In copper mining, it functions as a flotation agent, while in the leather industry, it helps to remove hairs from hides. Additionally, it is used as an intermediate in synthetic chemistry and serves as a raw material for the production of ammonium sulfate and ethanethiol.
