Description

Zinc Bis[o-(2-Ethylhexyl)] Bis[o-(Isobutyl)] Bis(Dithiophosphate) is a specialized organometallic compound widely recognized as a high-performance anti-wear and extreme pressure (EP) additive. This product matters because it provides critical lubrication and metal surface protection under severe operating conditions, significantly reducing friction and wear in mechanical systems. It is primarily needed by formulators and manufacturers in the lubricants and metalworking fluids industries seeking to enhance the durability and efficiency of their products.

Application

• Primary anti-wear and extreme pressure (EP) additive in engine oils, gear oils, and hydraulic fluids.
• Key component in industrial lubricants for heavy machinery and manufacturing equipment.
• Additive for metalworking fluids and cutting oils to improve tool life and surface finish.
• Friction modifier in automotive and industrial greases.
• Used in the formulation of specialty lubricants for mining, construction, and agricultural machinery.
• Component in anti-seize compounds and pastes.

Basic Information

Product Name	Zinc Bis[o-(2-Ethylhexyl)] Bis[o-(Isobutyl)] Bis(Dithiophosphate)
CAS No.	26566-95-0
Molecular Formula	C32H68O4P2S4Zn
Molecular Weight	764.4 g/mol
Synonyms	Zinc O,O'-bis(2-ethylhexyl) O,O'-bis(isobutyl) dithiophosphate; Zinc dialkyl dithiophosphate (ZDDP) - mixed alkyl; Zinc 2-ethylhexyl isobutyl dithiophosphate; Lubricant additive ZDDP; Zinc dithiophosphate; Antiwear additive ZDDP; LZ 137; Vanlube 672; Mixed alkyl zinc dithiophosphate
EINECS	Contact for details

Quality Control

Our Zinc Bis[o-(2-Ethylhexyl)] Bis[o-(Isobutyl)] Bis(Dithiophosphate) is manufactured under strict quality management systems to ensure batch-to-batch consistency and performance reliability. The product undergoes rigorous quality testing, including analysis of zinc content, phosphorus content, sulfur content, and viscosity, to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request to support your quality assurance and regulatory needs.

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 heat, sparks, and open flame. This material is light-sensitive (store away from light).

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 - 17.0 %
Kinematic Viscosity @ 40°C	20 - 40 cSt
Density @ 20°C	1.00 - 1.10 g/mL
Flash Point	> 150 °C

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