Supplier of Sodium Sulfide from Turkey and Dubai UAE

High-quality Sodium Sulfide (Na₂S) supplier for industrial applications in pulp, textile, leather, chemical, and water treatment industries

Descriptions of Sodium Sulfide

Sodium Sulfide is a vital inorganic chemical used across many industries for its strong alkaline and reducing properties. With the chemical formula Na₂S and its hydrated form Na₂S·9H₂O, it dissolves easily in water, forming clear, strongly alkaline solutions. Although sodium sulfide appears as a yellow solid, its solutions are colorless. One of its distinctive features is the emission of hydrogen sulfide (H₂S) gas, which has a pungent “rotten egg” odor when exposed to air.

Sodium sulfide also reacts with hydrogen peroxide to produce sodium sulfate, making it a versatile chemical in industrial processes.


Properties of Sodium Sulfide

  • Appearance: Yellow to red solid, depending on impurities

  • Odor: Strong rotten egg smell due to H₂S

  • Molecular Weight: 78.04 g/mol

  • Melting Point: ~1,175°C (2,147°F)

  • Solubility: Highly soluble in water, forming a strongly alkaline solution

  • Hydrated Forms: Most commonly Na₂S·9H₂O, which is more stable and easier to handle

  • Ionic Nature: Contains two sodium ions (Na⁺) and one sulfide ion (S²⁻)


Applications of Sodium Sulfide

Sodium sulfide finds applications in a wide range of industries due to its chemical reactivity:

Pulp and Paper Industry

  • Kraft Process: Breaks down lignin in wood, aiding cellulose fiber separation for paper production.

Textile Industry

  • Dyeing and Bleaching: Functions as a reducing agent to fix dyes and remove excess color.

  • Desulfurizing and Dechlorinating: Eliminates sulfur and chlorine compounds, improving fabric quality.

Leather Industry

  • Tanning: Used to remove hair from hides and soften leather for processing.

Chemical Industry

  • Production of Sulfur Compounds: Serves as a precursor for manufacturing sodium thiosulfate, sodium polysulfide, and other sulfur-containing chemicals.

  • Reducing Agent: Commonly used in organic and inorganic reactions to donate electrons and reduce other substances.

  • Na₂S is often used alongside other industrial chemicals, such as Caustic Soda Flakes, to enhance chemical processes in pulp, textile, and chemical manufacturing.

Water Treatment

  • Wastewater Treatment: Helps precipitate heavy metals, making industrial effluents safer to release.

Mining Industry

  • Ore Flotation: Assists in separating valuable minerals by altering the surface properties of ores.

Rubber Industry

  • Vulcanization: Improves the elasticity and strength of rubber products.

Oil & Gas Industry

  • Desulfurization: Removes sulfur compounds from petroleum and gas, improving fuel quality and reducing emissions.

Photographic Industry

  • Film Development: Acts as a fixing agent to dissolve unexposed silver halide crystals in films and papers.

Electronics & Batteries

  • Sodium-Sulfur Batteries: Used as an electrolyte, providing high energy efficiency.

Agriculture

  • Pesticides and Fungicides: Used in formulations to control pests and fungal infections.


Safety, Handling, and Storage

Handling sodium sulfide requires caution due to its toxicity and corrosiveness:

  • Toxicity: Can irritate skin, eyes, and the respiratory system. Contact with acids releases poisonous H₂S gas.

  • Corrosiveness: Can damage metals and other materials.

  • Storage: Store in a cool, dry, well-ventilated area, away from acids and moisture. Proper ventilation is essential to prevent gas accumulation.


Packing and Transportation

  • Forms: Crystallized, broken, or prilled

  • Packaging: Polyethylene bags, fiber drums, or IBC containers

  • Container Loading: Sodium sulfide is typically loaded into 20–25 MT containers, ensuring proper stacking and protection from moisture. Ventilation during transport is important to prevent hydrogen sulfide buildup.


Environmental Considerations

  • Aquatic Toxicity: Harmful to aquatic life; effluents must be treated before release.

  • Biodegradability: Can naturally decompose, but high concentrations can cause ecological damage.


Technical Data Sheets of Sodium Sulfide

SPECIFICATIONS RESULTS
Appearance Yellow Flakes
Na2S, % 60 ± 2
Na2SO3, % < 2
Na2CO3, % < 0.5
Fe, ppm < 10
Insoluble Content, % < 12
Density, g/ cmᵌ 1600
Melting Point, ℃ 92