Description

Sodium Tetrasulfide is an inorganic polysulfide compound with the formula Na₂S₄. This versatile sulfur source is valued for its role as a sulfidizing and vulcanizing agent in industrial processes. It is a critical raw material for manufacturers in the rubber, chemical synthesis, and metallurgical sectors seeking to introduce sulfur cross-links or sulfide functional groups. Sodium Tetrasulfide CAS NO 12034-39-8 is engineered to meet the stringent demands of these high-performance applications.

Application

• Rubber Vulcanization: Acts as a key vulcanizing agent for synthetic rubbers, improving elasticity, durability, and heat resistance.
• Chemical Synthesis: Serves as a sulfidizing agent in organic synthesis to produce thiols, disulfides, and other sulfur-containing compounds.
• Metal Extraction & Processing: Used in the hydrometallurgical recovery of precious metals like gold and silver from ores.
• Leather Processing: Employed in the tanning industry as a depilatory and unhairing agent.
• Pesticide & Dye Intermediate: Functions as a building block in the manufacture of certain agricultural chemicals and sulfur dyes.
• Analytical Chemistry: Utilized as a reagent in laboratory settings for qualitative analysis and sulfide precipitation.

Basic Information

Product Name	Sodium Tetrasulfide
CAS No.	12034-39-8
Molecular Formula	Na₂S₄
Molecular Weight	174.24 g/mol
Synonyms	Sodium Tetrasulphide; Disodium Tetrasulfide; Tetrasodium Tetrasulfide; Sodium Polysulfide (Na₂S₄); Sodium Sulfide (Na₂S₄); Sodium Sulfide T; Sulfurated Sodium; Sodium Sulfur Compound
EINECS	234-817-9

Quality Control

Our Sodium Tetrasulfide is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. We provide Certificates of Analysis (COA) with every shipment, detailing key parameters such as assay, sulfide content, and impurity profiles. Our commitment to quality assurance ensures batch-to-batch consistency and reliability for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. Due to its hygroscopic (moisture-sensitive) and easily oxidized nature, it is recommended to store under an inert atmosphere such as nitrogen for long-term stability. Keep container tightly sealed when not in use to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	Yellow to orange-red flakes or solid
Identification (IR)	Conforms
Assay (as Na₂S₄)	≥ 95.0 %
Sulfide Content (as S²⁻)	Contact for details
Water Content	≤ 2.0 %
Insoluble Matter	≤ 0.5 %

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