Description

Sodiumdiisobutylmonothiophosphate is an organophosphorus compound widely utilized as a high-performance specialty chemical additive. Its value lies in its unique thiophosphate structure, which provides excellent properties as a stabilizer, antioxidant, and corrosion inhibitor in demanding industrial formulations. This product is essential for manufacturers in the lubricant, polymer, and metalworking fluid industries seeking to enhance product longevity and performance under oxidative stress.

Application

• Lubricant and Grease Additive: Functions as an effective antioxidant and anti-wear agent, extending the service life of industrial and automotive lubricants.
• Polymer Stabilizer: Used to inhibit thermal and oxidative degradation in plastics and synthetic rubbers during processing and end-use.
• Corrosion Inhibitor: Provides protection for ferrous and non-ferrous metals in metalworking fluids and industrial coolant systems.
• Extreme Pressure (EP) Agent: Enhances the load-carrying capacity of lubricating oils and greases used in gearboxes and heavy machinery.
• Hydraulic Fluid Component: Contributes to the stability and anti-corrosive properties of advanced hydraulic fluid formulations.
• Fuel and Oil Additive: Acts as a multifunctional additive to control deposits and improve the oxidative stability of fuels and industrial oils.

Basic Information

Product Name	Sodiumdiisobutylmonothiophosphate
CAS No.	53378-52-2
Molecular Formula	C8H19NaO2PS
Molecular Weight	233.25 g/mol
Synonyms	Sodium O,O-diisobutyl phosphorothioate; Diisobutyl thiophosphoric acid sodium salt; Sodium diisobutyl thiophosphate; Phosphorothioic acid, O,O-diisobutyl ester, sodium salt; Isobutyl thiophosphate sodium salt; DBTP; Sodium DBTP; Antioxidant 353
EINECS	258-523-9

Quality Control

Our Sodiumdiisobutylmonothiophosphate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee consistent quality and performance for your critical applications.

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 material is hygroscopic (moisture-sensitive) and easily oxidized; containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen) after opening to maintain product integrity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
pH (5% solution)	7.0 - 9.0
Density (20°C)	1.05 - 1.15 g/cm³

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