Description

Bis(O,o-Didodecyl Phosphorodithioato-S,S)-Zinc is a high-performance organophosphorus compound widely recognized for its exceptional properties as an antioxidant and anti-wear additive. This chemical is crucial for enhancing the durability and operational lifespan of lubricants and greases under extreme pressure and temperature conditions. It is primarily sought after by formulators in the lubricant, metalworking fluid, and industrial grease manufacturing sectors who require reliable additive packages to protect critical machinery components.

Application

• Lubricant Additive: Functions as a multifunctional additive in engine oils, gear oils, and hydraulic fluids, providing extreme pressure (EP) and anti-wear protection.
• Metalworking Fluids: Incorporated into cutting oils and drawing compounds to reduce friction and tool wear, improving machining efficiency and surface finish.
• Industrial Greases: Used as a key component in grease formulations to enhance load-carrying capacity and prevent metal-to-metal contact in bearings and gears.
• Fuel Additive: Acts as a stabilizer and antioxidant in certain fuel formulations to prevent oxidation and deposit formation.
• Polymer Stabilizer: Serves as a secondary antioxidant and metal deactivator in plastics and rubber to prevent thermal and oxidative degradation.
• Corrosion Inhibitor: Provides protective properties in industrial oils and coatings to mitigate corrosion on ferrous metals.

Basic Information

Product Name	Bis(O,o-Didodecyl Phosphorodithioato-S,S)-Zinc
CAS No.	4563-56-8
Molecular Formula	C48H100O4P2S4Zn
Molecular Weight	1004.6 g/mol
Synonyms	Zinc bis(O,O-didodecyl phosphorodithioate); Zinc dialkyldithiophosphate (ZDDP, C12); Zinc didodecyldithiophosphate; Zinc lauryl dithiophosphate; Lubrizol 5390 (example trade); Vanlube 622 (example trade); Antioxidant ZDDP (C12); O,O-Didodecyl phosphorodithioic acid S,S'-zinc salt
EINECS	Contact for details

Quality Control

Our production of Bis(O,o-Didodecyl Phosphorodithioato-S,S)-Zinc adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed against key parameters including zinc content, phosphorus content, sulfur content, and viscosity to meet precise technical specifications. A comprehensive Certificate of Analysis (COA) documenting these results is provided with every shipment to support your quality assurance processes.

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). Keep away from strong oxidizing agents and heat sources. Under these conditions, the product has an extended shelf life.

Specification

Item	Specification
Appearance	Clear, amber to light yellow viscous liquid
Identification (IR)	Conforms
Assay (Zn content)	Min. 6.0 %
Phosphorus Content	5.8 - 6.2 %
Sulfur Content	12.5 - 13.5 %
Density (20°C)	0.95 - 1.05 g/mL
Kinematic Viscosity (100°C)	Report
Acidity (as H3PO4)	Max. 0.5 %

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