Description

Zinc O,O,O',O'-Tetrakis(1,3-Dimethylbutyl) Bis(Phosphorodithioate) is a high-performance organophosphorus compound widely utilized as an antioxidant and anti-wear additive. Its primary value lies in its exceptional ability to protect base oils and formulated lubricants from thermal degradation and oxidative breakdown, thereby significantly extending equipment service life. This product is essential for formulators and manufacturers in the lubricant, grease, and fuel additive industries seeking to enhance the stability and performance of their products under demanding conditions.

Application

• Primary antioxidant and anti-wear additive in industrial and automotive lubricants, including engine oils, gear oils, and hydraulic fluids.
• Key component in grease formulations to prevent oxidation and provide extreme pressure (EP) protection.
• Used as a stabilizer in synthetic and semi-synthetic base oils to inhibit sludge and varnish formation.
• Additive for metalworking fluids and cutting oils to improve thermal stability and tool life.
• Incorporated into fuel additives to control deposits and protect fuel system components.
• Functional additive in specialty industrial oils for turbines, compressors, and other high-temperature applications.

Basic Information

Item	Details
Product Name	Zinc O,O,O',O'-Tetrakis(1,3-Dimethylbutyl) Bis(Phosphorodithioate)
CAS No.	2215-35-2
Molecular Formula	C28H60O4P2S4Zn
Molecular Weight	708.4 g/mol
Synonyms	Zinc Bis[O,O-bis(1,3-dimethylbutyl)phosphorodithioate]; Zinc Dialkyl Dithiophosphate (ZDDP) - branched hexyl type; Zinc Hexyl Dithiophosphate; Zinc O,O-Di(1,3-dimethylbutyl) Phosphorodithioate; Antioxidant ZDDP; Lubricant Additive 2215-35-2; Anti-wear Agent ZDDP
EINECS	218-697-5

Quality Control

Our production of Zinc O,O,O',O'-Tetrakis(1,3-Dimethylbutyl) Bis(Phosphorodithioate) adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including assay, zinc content, phosphorus content, and impurity profiling, to ensure it meets precise chemical and performance specifications. Certificates of Analysis (COA) documenting purity, physical properties, and performance characteristics are provided with every shipment to guarantee consistency and reliability for your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials such as strong oxidizing agents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	Clear, pale yellow to amber viscous liquid
Identification (IR)	Conforms to structure
Assay (ZDDP Content)	Min. 95.0%
Zinc (Zn) Content	8.5 - 9.5 %
Phosphorus (P) Content	8.0 - 9.0 %
Sulfur (S) Content	16.0 - 18.5 %
Density at 20°C	1.00 - 1.10 g/mL
Kinematic Viscosity at 100°C	Report
Acid Number	Max. 1.0 mg KOH/g
Water Content	Max. 0.1 %

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