Description

Sodium Hydrosulfide is an important inorganic chemical compound, commercially available as a solid or in solution form. It serves as a versatile and powerful sulfurizing and reducing agent in numerous industrial processes. This product is essential for manufacturers in sectors such as pulp & paper, leather tanning, and mineral processing, where controlled sulfur chemistry is required. Its utility is driven by its ability to generate hydrogen sulfide in situ under specific conditions.

Application

• Pulp & Paper Industry: Used in the kraft process as a pulping agent and for sulfide addition.
• Leather Processing: Acts as a depilatory agent in the unhairing stage of leather tanning.
• Mining & Metallurgy: Employed as a flotation agent and precipitant in the recovery of copper, nickel, and other non-ferrous metals.
• Chemical Synthesis: Serves as a key intermediate and sulfur source in the production of specialty chemicals, dyes, and other sulfur-containing compounds.
• Water Treatment: Utilized for heavy metal precipitation and removal from industrial wastewater.
• Textile Industry: Applied in sulfur dyeing processes for cellulose fibers.

Basic Information

Product Name	Sodium Hydrosulfide
CAS No.	16721-80-5
Molecular Formula	NaHS
Molecular Weight	56.06 g/mol
Synonyms	Sodium Bisulfide; Sodium Hydrogen Sulfide; Sodium Sulfhydrate; Sodium Mercaptan; Sulfurated Soda; Sodium Hydrosulphide; NaHS
EINECS	240-778-0

Quality Control

Our Sodium Hydrosulfide is manufactured under strict quality control protocols to ensure batch-to-batch consistency and reliability. Production adheres to relevant industry standards, and comprehensive testing is performed to verify key parameters such as assay, sulfide content, and impurity levels. A Certificate of Analysis (COA) documenting these results is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and oxidizers. Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed to prevent absorption of atmospheric moisture and degradation. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	Yellow flakes or solution
Identification (IR)	Conforms
Assay (as NaHS)	≥ 70.0% (Flakes) / ≥ 40.0% (Solution)
Sulfide Content	≥ 67.0% (Flakes) / Contact for details (Solution)
Iron (Fe)	≤ 50 ppm
Water Insolubles	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.