Description

Sodium O,o-Bis(Methylphenyl) Dithiophosphate is a specialized organophosphorus compound widely used as a high-performance additive and intermediate. Its primary value lies in its ability to function as an effective antioxidant, metal deactivator, and extreme pressure (EP) agent in various industrial formulations. This chemical is essential for manufacturers in the lubricant, fuel additive, and polymer stabilization industries seeking to enhance product durability and performance under demanding conditions.

Application

• Lubricant & Grease Additive: Functions as a multifunctional additive providing anti-wear, extreme pressure (EP), and antioxidant properties, extending the life of industrial and automotive lubricants.
• Fuel & Oil Stabilizer: Acts as a metal deactivator and antioxidant in fuels and industrial oils, preventing degradation and sludge formation caused by oxidation and trace metal catalysis.
• Polymer Stabilizer: Used as a secondary stabilizer or co-stabilizer in plastics and synthetic rubbers to protect against thermal and oxidative degradation during processing and service life.
• Metalworking Fluid Component: Incorporated into cutting fluids, drawing compounds, and other metalworking formulations to improve lubricity and tool life.
• Corrosion Inhibitor: Provides protective properties in functional fluids and coatings for ferrous and non-ferrous metals.
• Chemical Intermediate: Serves as a key building block for the synthesis of other complex organophosphorus compounds with tailored properties.

Basic Information

Product Name	Sodium O,o-Bis(Methylphenyl) Dithiophosphate
CAS No.	61792-48-1
Molecular Formula	C14H14NaO2PS2
Molecular Weight	348.34 g/mol
Synonyms	Sodium O,O-bis(methylphenyl) phosphorodithioate; Sodium O,O-di(methylphenyl) dithiophosphate; Phosphorodithioic acid, O,O-bis(methylphenyl) ester, sodium salt; Sodium methylphenyl dithiophosphate; Dithiophosphoric acid O,O-bis(methylphenyl) ester sodium salt; Antioxidant DTPNa; Lubricant additive 61792-48-1
EINECS	Contact for details

Quality Control

Our Sodium O,o-Bis(Methylphenyl) Dithiophosphate is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with relevant industry specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment to guarantee traceability and quality assurance for our B2B partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and performance.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
pH (5% solution)	7.0 - 9.0
Heavy Metals (as Pb)	≤ 20 ppm

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