Description

Phosphorus Trisulfide CAS NO 12165-69-4 is an inorganic chemical compound primarily recognized for its role as a key precursor in the synthesis of organophosphorus compounds. Its commercial value lies in providing a reliable source of phosphorus and sulfur for controlled chemical manufacturing processes. This product is essential for industrial and research laboratories engaged in developing specialized lubricant additives, flame retardants, and novel chemical intermediates.

Application

• Chemical Synthesis: A fundamental starting material for producing various organophosphorus derivatives and thiophosphoryl compounds.
• Lubricant Additives: Used in the manufacture of extreme-pressure (EP) and anti-wear additives for industrial lubricants and greases.
• Flame Retardant Production: Serves as an intermediate in the synthesis of certain phosphorus-based flame retardants for polymers and textiles.
• Research & Development: Employed in academic and industrial R&D for exploring new inorganic and coordination chemistry.
• Specialty Chemicals: Acts as a reagent in the production of other sulfur- and phosphorus-containing specialty chemicals.

Basic Information

Item	Detail
Product Name	Phosphorus Trisulfide
CAS No.	12165-69-4
Molecular Formula	P4S3
Molecular Weight	220.09 g/mol
Synonyms	Tetraphosphorus Trisulfide; Phosphorus Sesquisulfide; P4S3; Trisulfurated Phosphorus; Phosphorus(III) Sulfide; Sesquisulfure de Phosphore (French); Fosforo Sesquisolfuro (Italian)
EINECS	235-314-5

Quality Control

Our Phosphorus Trisulfide is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for each lot, detailing key parameters such as assay, appearance, and impurity profiles. Our quality management system is designed to meet the rigorous demands of industrial chemical supply.

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 oxidizers and moisture. Due to its light-sensitive and easily oxidized nature, it is recommended to handle and store under an inert atmosphere for long-term stability. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Yellow to greenish-yellow crystalline solid or lumps
Identification (IR)	Conforms to structure
Assay (P4S3)	≥ 98.0 %
Melting Point	172 - 175 °C
Insoluble Matter	≤ 0.1 %

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