Description

Sodium O,o-Diisobutyl Dithiophosphate is a specialized organophosphorus compound widely used as a high-performance additive and intermediate. Its primary value lies in its excellent surface-active and metal-chelating properties, making it a critical component in formulations requiring extreme pressure lubrication and corrosion inhibition. This chemical is essential for manufacturers in the lubricant, metalworking fluid, and mining industries, where it enhances product stability and performance under demanding conditions.

Application

• Extreme Pressure (EP) Additive: A key component in advanced lubricating oils and greases for automotive and industrial gear applications.
• Metalworking Fluids: Used in cutting, grinding, and drawing fluids to provide lubrication, reduce wear, and prevent welding of metal surfaces.
• Corrosion Inhibitor: Formulated into rust preventatives and protective coatings for ferrous and non-ferrous metals.
• Mining Chemicals: Acts as a flotation collector and depressant in the mineral processing of sulfide ores, such as copper and lead.
• Fuel & Oil Additive: Employed as a detergent and anti-wear agent in engine oils and fuel formulations.
• Chemical Intermediate: Serves as a precursor for synthesizing other dithiophosphate esters and organosulfur compounds.

Basic Information

Product Name	Sodium O,o-Diisobutyl Dithiophosphate
CAS No.	53378-51-1
Molecular Formula	C8H18NaO2PS2
Molecular Weight	264.31 g/mol
Synonyms	Sodium Diisobutyldithiophosphate; Dithiophosphoric Acid O,O-Diisobutyl Ester Sodium Salt; Sodium O,O-Diisobutyldithiophosphate; Isobutyl Dithiophosphate Sodium Salt; DIOP; Sodium DIOP; Phosphorodithioic Acid, O,O-Bis(2-methylpropyl) Ester, Sodium Salt; CAS 53378-51-1
EINECS	258-520-8

Quality Control

Our Sodium O,o-Diisobutyl Dithiophosphate is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. Each lot undergoes rigorous analytical testing, including assay, identification, and impurity profiling, to meet precise customer specifications. A Certificate of Analysis (COA) detailing all quality parameters is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic and easily oxidized nature, it is recommended to store the product under an inert atmosphere (e.g., nitrogen) and minimize exposure to air and moisture to maintain stability and shelf life.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0%
Water Content (KF)	≤ 1.0%
pH (5% Solution)	7.0 - 9.5
Heavy Metals (as Pb)	≤ 20 ppm

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