Description

Bis(Thiopyrophosphoric Acid) CAS NO 36558-41-5 is a specialized organophosphorus compound characterized by its unique thiopyrophosphate structure. This chemical serves as a critical intermediate and functional additive in advanced material synthesis and specialty chemical manufacturing. It is essential for industries requiring precise sulfur and phosphorus incorporation, such as high-performance lubricant formulation, polymer modification, and agrochemical research.

Application

• Lubricant & Grease Additive: Acts as an extreme pressure (EP) and anti-wear agent, enhancing the performance of industrial and automotive lubricants.
• Polymer & Resin Modification: Used as a flame retardant synergist and cross-linking agent in specialty polymers and epoxy resins.
• Agrochemical Synthesis: Serves as a key intermediate in the production of novel insecticides and fungicides that require thiophosphate moieties.
• Metal Surface Treatment: Functions as a component in specialized metal cleaning and surface passivation formulations.
• Chemical Research & Development: Employed as a building block for synthesizing novel organophosphorus ligands and catalysts.
• Flame Retardant Systems: Used as an additive in plastics and textiles to improve fire resistance properties.

Basic Information

Product Name	Bis(Thiopyrophosphoric Acid)
CAS No.	36558-41-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Dithiopyrophosphoric Acid; Thiopyrophosphoric Acid Dimer; Bis(thiopyrophosphate); O,O'-Dithiopyrophosphoric Acid; Phosphorothioic Acid, Pyro Form; Tetrathiodiphosphoric Acid; Acidum Bis(thiopyrophosphoricum); DTDPA
EINECS	Contact for details

Quality Control

Our Bis(Thiopyrophosphoric Acid) is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay and impurity profiling. Certificates of Analysis (COA) documenting purity, identity, and other critical parameters are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is moisture-sensitive (hygroscopic) and should be kept under an inert atmosphere such as nitrogen to prevent degradation. Keep away from strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Density (20°C)	~1.4 g/cm³

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