Description

Sodium Trisulfide Anhydrous is an inorganic chemical compound with the formula Na2S3. This specialized sulfur source is valued for its role in controlled sulfurization reactions and as a precursor in materials science. It is primarily utilized in industrial sectors such as specialty chemical synthesis, lubricant additive formulation, and advanced battery research where precise sulfur content is critical.

Application

• Specialty Chemical Synthesis: Acts as a key sulfurating agent in the production of organosulfur compounds and complex sulfides.
• Lubricant & Grease Additives: Used in the formulation of extreme-pressure (EP) and anti-wear additives for industrial lubricants.
• Advanced Battery Materials: Investigated as a precursor or additive in the development of next-generation sodium-sulfur and lithium-sulfur battery systems.
• Metallurgy & Metal Treatment: Employed in surface treatment processes and in the production of certain metal sulfides.
• Analytical Chemistry: Serves as a reagent in specific laboratory procedures for sulfur analysis or calibration.
• Polymer Modification: Used to introduce sulfur cross-links or modify the properties of certain synthetic polymers.

Basic Information

Product Name	Sodium Trisulfide Anhydrous
CAS No.	37488-76-9
Molecular Formula	Na2S3
Molecular Weight	174.23 g/mol
Synonyms	Disodium trisulfide; Sodium sulfide (Na2S3); Trisodium trisulfide; Sodium polysulfide (Na2S3); Sodium sesquisulfide (informal); Sulfurated soda; Sodium trisulphide; Na2S3
EINECS	Contact for details

Quality Control

Our Sodium Trisulfide Anhydrous is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure consistent purity, composition, and performance. Certificates of Analysis (COA) documenting key parameters are provided to guarantee product integrity and traceability for our industrial partners.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store in a cool, dry, and well-ventilated area. The container must be kept tightly sealed to prevent absorption of atmospheric moisture and carbon dioxide, which can degrade the product. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	Yellow to orange crystalline solid or powder
Identification (IR)	Conforms
Assay (as Na2S3)	≥ 95.0%
Sulfur Content	Contact for details
Water Content	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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