Description

Zinc Bis[O,o-Bis(2-Ethylhexyl)] Bis(Dithiophosphate) is a high-performance organometallic compound widely utilized as an extreme pressure (EP) additive and anti-wear agent. This product matters because it provides critical protection for metal surfaces under severe operating conditions, reducing friction and preventing equipment failure. Industries that rely on durable machinery, such as automotive, heavy manufacturing, and industrial lubricant formulation, need this additive to enhance the performance and longevity of their lubricating oils and greases.

Application

• Primary anti-wear and extreme pressure (EP) additive in industrial gear oils, hydraulic fluids, and metalworking fluids.
• Key component in automotive engine oils and transmission fluids to protect critical engine components.
• Formulation of greases for bearings and heavy machinery operating under high load.
• Used in mining and construction equipment lubricants to withstand shock loads and boundary lubrication.
• Additive for compressor oils and other specialty industrial lubricants.
• Provides corrosion inhibition in lubricant packages, protecting metal surfaces.

Basic Information

Product Name	Zinc Bis[O,o-Bis(2-Ethylhexyl)] Bis(Dithiophosphate)
CAS No.	4259-15-8
Molecular Formula	C32H68O4P2S4Zn
Molecular Weight	764.4 g/mol
Synonyms	Zinc O,O'-bis(2-ethylhexyl) dithiophosphate; Zinc dialkyldithiophosphate (ZDDP); Zinc bis(O,O-di-2-ethylhexyl phosphorodithioate); Zinc 2-ethylhexyl dithiophosphate; Lubrizol 1395 (example trade); Antiwear Additive ZDDP; Zinc di(2-ethylhexyl) dithiophosphate; Phosphorodithioic acid, O,O-bis(2-ethylhexyl) ester, zinc salt
EINECS	224-235-8

Quality Control

Our production of Zinc Bis[O,o-Bis(2-Ethylhexyl)] Bis(Dithiophosphate) adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Each lot undergoes rigorous analytical testing, including assay, viscosity, and elemental analysis, to confirm it meets precise specifications for use in high-end lubricant formulations. A comprehensive Certificate of Analysis (COA) documenting purity, physical properties, and performance characteristics is available for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids, strong oxidizers, and incompatible materials. The container must be kept tightly sealed to minimize exposure to moisture and air.

Specification

Item	Specification
Appearance	Clear, amber to light yellow liquid
Identification (IR)	Conforms
Assay (Zn content)	8.0 - 9.5 %
Phosphorus Content	7.5 - 8.5 %
Sulfur Content	15.0 - 17.5 %
Density (20°C)	1.00 - 1.15 g/mL
Kinematic Viscosity (100°C)	Report
Acidity (as H3PO4)	≤ 0.5 %

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