Sodium Hydrosulfide (NaSH)

Product Overview

Sodium Hydrosulfide (NaSH) is a high-purity inorganic sulfur compound widely used in mining, chemical manufacturing, leather processing, and water treatment industries. It is valued for its strong reducing properties, high solubility in water, and ability to release hydrogen sulfide in controlled reactions, making it essential for metal recovery, chemical synthesis, and industrial applications.

Typically supplied as a yellowish or white crystalline solid, Sodium Hydrosulfide offers consistent performance, stability, and ease of handling in industrial operations.

Key Product Identification

• Product Name: Sodium Hydrosulfide

• Chemical Formula: NaSH

• CAS Number: 16721-80-5

• Molecular Weight: 56.06 g/mol

• HS Code: 28321000

• Appearance: Yellowish or white crystalline solid

• Odor: Characteristic sulfur odor

• Solubility: Highly soluble in water, decomposes in acids

Chemical & Physical Properties

Manufacturing & Quality Control

Sodium Hydrosulfide is produced by reacting sodium sulfide with hydrogen sulfide gas under controlled conditions, followed by crystallization and drying. Quality control ensures high purity, controlled moisture, and stable reactivity.

Quality assurance includes:

• Assay and purity analysis

• Moisture content and solubility testing

• Heavy metals and impurity control

• Batch traceability with COA

Available grades:

• Industrial Grade

• Mining Grade

• Chemical Synthesis Grade

Applications of Sodium Hydrosulfide

Mining & Metallurgy

• Precipitation and flotation of metals

• Copper, nickel, and gold recovery

• Sulfide-based ore processing

Chemical Industry

• Intermediate in sulfur-containing compounds

• Reducing agent in organic and inorganic synthesis

Leather Industry

• Dehairing and depilation of hides

• Controlled reduction of sulfides in leather processing

Water Treatment

• Heavy metal precipitation

• pH and sulfide adjustment in industrial wastewater

Packaging & Storage

• Packaging Options:

• 25 kg PE-lined bag

• 500–1,000 kg jumbo bag

• Customized packaging upon request

• Storage Conditions:

• Store in a cool, dry, and well-ventilated area

• Avoid exposure to acids, moisture, and oxidizing agents

• Keep containers tightly closed

• Shelf Life: 12 months under proper storage conditions

Safety & Handling

• Strong reducing and corrosive chemical

• Handle with gloves, goggles, and protective clothing

• Avoid contact with acids and oxidizing agents

• Use appropriate ventilation to avoid inhalation of H₂S

• Refer to SDS / MSDS for detailed safety information

Regulatory & Compliance

Available documentation:

• COA (Certificate of Analysis)

• SDS / MSDS

• REACH compliance

• Export and customs documentation

Why Choose Our Sodium Hydrosulfide?

• ✔ High purity and consistent reactivity

• ✔ Proven performance in mining, chemical, and leather industries

• ✔ Reliable supply and competitive pricing

• ✔ Strict quality control and traceable batches

• ✔ Professional technical and regulatory support

Frequently Asked Questions (FAQ)

Q1: What is Sodium Hydrosulfide used for?

It is used in mining for metal recovery, as a chemical intermediate, and in leather processing.

Q2: How should Sodium Hydrosulfide be stored?

Store in a cool, dry, ventilated area, away from acids and oxidizers.

Q3: Is NaSH soluble in water?

Yes, it is highly soluble, forming a strongly alkaline solution.

Q4: Is it safe to handle?

It is corrosive and a strong reducing agent; proper PPE and ventilation are required.