Sodium Sulfide CAS#1313-82-2
High Water Solubility: Sodium sulfide is highly soluble in water, forming clear, colorless solutions, making it efficient for industrial applications like leather processing and dye production.
Reactivity and Versatility: It reacts readily with acids, metals, and oxidizing agents, enabling its use in various chemical manufacturing processes.
Hygroscopic Nature: Sodium sulfide's ability to absorb moisture from the air makes it effective in certain chemical reactions, though it requires careful handling.
Wide Industrial Applications: It is extensively used in industries such as leather processing, dye production, and chemical manufacturing, demonstrating its industrial importance despite handling precautions.
Sodium sulfide is an inorganic compound with the formula Na₂S, commonly encountered as its hydrate form, Na₂S·9H₂O. Both the anhydrous and hydrated forms are colorless and highly soluble in water, producing strongly alkaline solutions. When exposed to moist air, sodium sulfide and its hydrates gradually release hydrogen sulfide gas, which has a characteristic odor reminiscent of rotten eggs.
The anhydrous form typically appears as yellow to brick-red or purplish crystalline masses or fused solids. Sodium sulfide is widely used in industries such as leather processing, dye production, and chemical manufacturing, but due to its reactivity and release of toxic gases, it must be handled with caution.
Parameters
Melting point | 950 °C(lit.) |
density | 1.86 g/mL at 25 °C(lit.) |
storage temp. | Refrigerator (+4°C) |
solubility | H2O: 0.1 g/mL, clear, colorless |
form | flakes |
color | Yellow |
Specific Gravity | 1.856 |
Odor | Rotten egg odor |
Water Solubility | 186 g/L (20 ºC) |
Sensitive | Hygroscopic |
Crystal Structure | Reverse CaF2 type |
crystal system | Cube |
Merck | 14,8681 |
Space group | Fm3m |
Lattice constant | a/nmb/nmc/nmα/oβ/oγ/oV/nm30.6540.6540.6549090900.2797 |
Dielectric constant | 5.0（Ambient） |
Stability: | Spontaneously flammable. Incompatible with acids, metals, oxidizing agents. Contact with acid liberates toxic gas. Fine dust/air mixtures are explosive. Hygroscopic. |
InChIKey | CXPWOVUZRAFMDA-UHFFFAOYSA-N |
CAS DataBase Reference | 1313-82-2(CAS DataBase Reference) |
NIST Chemistry Reference | Sodium sulfide(1313-82-2) |
EPA Substance Registry System | Sodium sulfide (1313-82-2) |
Safety Information
Hazard Codes | C,N,Xn |
Risk Statements | 31-34-50-22 |
Safety Statements | 26-45-61-36/37/39 |
RIDADR | UN 1849 8/PG 2 |
WGK Germany | 2 |
RTECS | WE1905000 |
F | 3-8-9-23 |
TSCA | Yes |
HazardClass | 4.2 |
PackingGroup | II |
HS Code | 28301010 |
Hazardous Substances Data | 1313-82-2(Hazardous Substances Data) |
