Description

Zinc Dioleyl Dithiophosphate is an organometallic compound widely utilized as a high-performance additive. Its primary value lies in its exceptional anti-wear and extreme pressure (EP) properties, which are critical for protecting metal surfaces under severe operating conditions. This product is essential for formulators in the lubricants and metalworking fluids industries seeking to enhance the durability and efficiency of their products. The compound is identified by the CAS registry number 71786-62-4.

Application

Zinc Dioleyl Dithiophosphate serves as a versatile multifunctional additive in various industrial sectors. Its key applications include:

• Primary Anti-Wear/Extreme Pressure (EP) Additive in industrial gear oils, hydraulic fluids, and compressor oils.
• Key Component in Metalworking Fluids such as cutting oils, grinding fluids, and drawing compounds to reduce tool wear and improve surface finish.
• Performance Additive for Greases, providing enhanced load-carrying capacity and protection against scuffing and scoring.
• Friction Modifier in specialized lubricants to improve energy efficiency and operational smoothness.
• Corrosion Inhibitor offering secondary protection for ferrous and non-ferrous metals in lubricant systems.
• Additive Package Synergist, often blended with other additives like detergents, dispersants, and antioxidants for comprehensive lubricant formulation.

Basic Information

Product Name	Zinc Dioleyl Dithiophosphate
CAS No.	71786-62-4
Molecular Formula	C72H140O4P2S4Zn
Molecular Weight	~1290.8 g/mol
Synonyms	ZDDP (Oleyl); Zinc O,O'-dioleyl dithiophosphate; Dioleyl zinc dithiophosphate; Zinc bis(O,O'-dioleyl dithiophosphate); Zinc dialkyl dithiophosphate (C18); Antiwear Agent ZDDP; Lubricant Additive ZDDP; LZ 1370 (Common Trade Name)
EINECS	Contact for details

Quality Control

Our Zinc Dioleyl Dithiophosphate is manufactured under strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Production adheres to relevant industry standards, and each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as zinc content, phosphorus content, sulfur content, acidity, and viscosity. We are committed to meeting the specific requirements of our global B2B partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation to maintain optimal efficacy. Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Clear, amber to brown viscous liquid
Identification (IR)	Conforms to structure
Zinc Content	4.5 - 5.5 % (w/w)
Phosphorus Content	5.5 - 6.5 % (w/w)
Sulfur Content	9.5 - 11.5 % (w/w)
Acidity (as H3PO4)	≤ 0.5 %
Kinematic Viscosity @ 40°C	Reported on COA
Density @ 20°C	0.90 - 1.00 g/mL

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